The 6th International Conference on

High Strength Low Alloy Steels

(HSLA Steels'2011)

Beijing, China

May 31-June 2, 2011

Organized by

The Chinese Society for Metals

CONTENTS

Plenary Sessions

The State-of-Art and Development Trends of HSLA Steels in China

WENG Yu-qing, YANG Cai-fu, SHANG Cheng-jia 1

Modern Microalloyed Steels Garcia C Issac, Suikkanen Pasi P, Hua Mingjian, Deardo Anthony J 14

The Development ofAdvanced HSLA Steel in Angang in Low Carbon Age ZHANG Xiao-gang 22

Different Roles for Vanadium as a Microalloying Element in Structural Steels Hutchinson Bevis 29

Development and Application ofHigh Performance X80 Line Pipe for the 2nd West-East Gas Pipeline

LI He-lin, HUO Chun-yong, JI Ling-kang, LI Yang 3 9

AdvancedHSLA Steels for Automotive Use Sekita Takashi, Seto Kazhiro, Funakawa Yoshimasa 49

Niobium in Microalloyed Steels Unchallenged for Its MainApplications

Nogueira Marcos A Stuart, Carneiro Tadeu 57

High-Strength Nanostructured Cold-Resistant Steels for Continental ShelfDevelopment

Oryshchenko A S, Khlusova E I, Orlov V V 66

Latest Progress ofLow-Alloy High-Strength Steels in Baosteel LU Jiang-xin 72

Microalloyed Steels for Heat Treating Applications at Higher Process Temperatures

David K. Matlock, John G. Speer, Steven G. Jansto, Marcus Stuart 80

High Performance Structural Steels for Shipbuilding and Offshore Structures

Choo Wung-Yong, Suh In-Shik, Kim Sang-ho, An Gyu-Baek, Lee Chang-Sun 90

Research and Practice of Production Technology for High Performance Low Alloy Steels in WISCO

FU Lian-chun, GUO Ai-ming, LIU Ji-bin, GUO Bin, CHEN Yan-tang 99

New Microalloyed Steels for Forgings Christoph Keul, Wolfgang Bleck 104

Development ofNew Type Mn-Series Bainitic Steels in China

BAI Bing-zhe, GAO Gu-hui, ZHENG Yan-kang, YANG Zhi-gang 112

Physical Metallurgy and Properties

Stress Oriented Hydrogen Induced Cracking of Linepipe Steel

Wan Keun Kim, Gyu Tae Park, Kyoo Young Kim 121

Effect of Carbon on Dynamic Recrystallization Behavior of Vanadium Microalloy Steels

LIU Guo-quan, ZHAO Hai-tao, WU Jin-bin, WANG Cheng-yang, XU Lei 129

Analysis ofthe State of the Fine-Dispersive Precipitations in the Structure of High Strength Steel Weldox

1300 by Means of Electron Diffraction Ozgowicz Wojciech, Labisz Krzysztof 135

Effect ofHeat Treatment on the Mechanical Properties and the Carbide Characteristics of a High Strength

LowAlloy Steel

ZHANG Wen-feng, HU Ping, ZHOU Qiang-guo, YAN Wei, SHAN Yi-yin, YANG Ke 143

Precipitation Kinetics on a Nb - V Microalloyed Steel

Cartaya Elio Armando, Cabrera Jose Maria, Prado Jose Manuel 148

Investigation on Precipitation Transition in CGHAZ for TRIP Steels Containing Vanadium and Titanium

ZHANG Mei, FU Ren-yu, Cooman De B C, LI Lin 154

Understanding Hydrogen Redistribution During Steel Casting, and Its Effective Extraction by Thermally

Induced Up-Hill Diffusion Gaude-fugarolas Daniel 159

Effect of Inclusions Containing Ti, Mg on Microstructure and Performance of HAZ in Low Carbon

Steel ZHAN Dong-ping, MA Jiang-hua, JIANG Zhou-hua, HE Ji-cheng, YU Jin 164

Influence of Microstructures on Polarization Resistance and Hydrogen-Induced Cracking of a

Micro-Alloyed Steel Submitted to Different Cooling Rates

Gonzalez M R, Martins de Araujo D S, Goldenstein H, Alonso-Falleiros N 168

Effect of TiO,v Particle on Grain Refining of HAZ

SHU Wei, WANG Xue-min, LI Shu-rui, HE Xin-lai 173

Static Tensile Deformation Behaviors ofan Fe-30Mn-3Al-3Si TWIP Steel Studied by In-Situ Neutron

Diffraction Tsuchida N, Ueji R, Yin F, Tomota Y 178

Effect ofMicroalloying, Principally With Vanadium, Processing Conditions and Microstructure on

Resistance to C02 Corrosion Edmonds David, Cochrane Robert, Grau Rosa 183

Phase Transformation and Mechanical Properties of an Ultrahigh Strength Steel

S. Chatterjee, S. K. Ghosh, P. S. Bandyopadhyay, Sanak Mishra 192

Martensite Transformation and Its Control in DP, TRIP and TWIP Steels

LI Lin, GAO Yi, SHI Wen, LIU Ren-dong, HE Yan-lin, FU Ren-yu, ZHANG Mei, WANG Hua 200

Effect of Niobium on Transformations From Austenite to Ferrite in Low Carbon Steels

Wang Li, Parker Sally, Rose Andrew, West Geoff, Thomson Rachel 208

Microstructure Evolution as an Effect of Strain Reversal During the Hot Deformation ofMicroalloyed

Steels Muszka Krzysztof, Sun Lin, Palmiere Eric, Majta Janusz 213

The Evolution of Ultrafme Grained Structure Formation Through Isothermal Static Phase Transformation

Hossein Beladi, liana B Timokhina, Subrata Mukherjee, Peter D Hodgson 218

Induced Surface Austenitic-Martensitic Transition by Mechanical Deformation in Mn Steel. Effect of

Surface Properties Boutarek-Zaourar Naima, Mansour Samir, Amara Sif Eddine 223

Effect ofNb on Microstructure Evolution in Cold Rolled Dual-Phase Steels: Interaction of Recovery,

Recrystallization and Phase Transformations

SONG R, JUN H, Pottore N, Fonstein N, Bhatta Charya D, Jansto S 228

Effect of Strain Path Reversal on Austenite Grain Subdivision and Deformation Induced Ferrite

Transformation Studied by Hot Torsion

Sun Lin, Muszka Krzysztof, Wynne Bradley P, Palmiere Eric J 233

Effect of Composition and Processing Parameters on the Formation of Nano-Bainite in Advanced High

Strength Steels liana Timokhina, Hossein Beladi, Xiang Xiong, Peter Hodgson 23 8

Chemistry Design of B-Containing Ultra-Heavy Plate Steels Aided by Thermo-Calc Calculation

PAN Tao, WANG Xiao-yong, WANG Hua, LI Yun, SU Hang, YANG Cai-fu 242

Effect of Microalloying Additions on the Microstructure and Mechanical Properties of Low Carbon Steel

EISSA Mamdouh, ABD El-Aziz Ahmed, GHALI Saeed, HALFA Hossam, SABER Shady 246

Correlation of Microstructure and Hydrogen Delayed Fracture for lGPa Steels

Hee Jae Kang, Ji Tae Park, Soon Tae Ahn, Kyung Mox Cho, Nam Hyun Kang 252

Microstructure and Deformation Mechanics of X100 Line Pipe Steel

LI Yang, MENG Li, JI Ling-kang, LI He-lin 255

Tensile Mechanical Behavior of Cold Rolled Si-Mn Steel Under Different Strain Rates

HE Yan-lin, LIN Yun-tao, HE Zhong-ping, ZHU Na-qiong, LI Lin 262

Influence of V(C,N) Precipitates on Microstructure and Mechanical Properties ofContinuous Cooled

C-Mn-V Carlos Garcia-Mateo,

Carlos Capdevila, Juan Cornide, Jesus Chao, Francisca G Caballero, Carlos Garcia de Andres 266

Two-Sublattice Thermodynamic Model on Carbonitride Precipitation in Microalloyed Steels Bearing

Nb-V-Ti XIANG Song, LIU Guo-quan 271

Strain Influence on the Precipitation Kinetic Nb-V Microalloyed HSLA Steel

Cartaya Elio Armando, Cabrera Jose Maria, Prado Jose Manuel 278

Segregation of C and P in Steel Droplets Solidified in Drop Tube

LINa, ZHANG Jun-wei, ZHAI Lu-lu 282

Effect of Isothermal Annealing on Nano Ti-Carbides Precipitation

Cheol-ho Park, Woo-jin Kim, Nam-hyun Kang, Hyung-hyup Do, Kyung-Mox Cho 287

Precipitates and Hydrogen Permeation Behavior in Vanadium-Bearing Microalloyed Low Carbon Steel

XU Chun, LI Xiao-jie, SHEN Da-guang 290

Influence of Mo on Dynamic Continuous Cooling Transformation of 1000 MPa Cold Rolled Dual Phase

Steel ZHAO Xian-meng, KANG Yong-lin, HAN Qi-hang 296

Effect ofNb, Mo and Ti on the Microstructures and Mechanical Properties of 700MPa Weathering Steel

WANG Bing, SONG Yu-lai, WEN Xiao-ming, WANG Hou-xin, LIU Qing-you 300

The Effect ofNb on Mechanical Properties ofQuenching and Partitioning Steels

ZHU Shuai, KANG Yong-lin, REN Kang-kang, WANG Chuan 306

Stress-Strain Partitioning Analysis in Dual Phase Steels

Eun-Joon Chun, Nam-Hyun Kang, Yong-Ho Park, Man-Been Moon, Jun-Yun Kang 310

Effect of the Small Reaustenized Grains on the Mechanical Properties of a HSLA Steel

ZHAO Lian-yu, WEI Yan, SHAN Yi-yin, YANG Ke 312

Microstructure and Properties of980MPa Ultrafme-Grained Cold Rolled Dual-Phase Steels

HAN Qi-hang, KANG Yong-lin, ZHAO Xian-meng 316

Whole Field Strain Measurement ofHigh Strength Steel Under Plain Strain Condition

CHEN Ke, LIN Jian-ping, SMITH Lorenzo M, ZHOU Qing-wei 320

Banded Microstructure Formation and Its Effect on the Performance of 06Ni9 Steel

LIU Dong-feng, WANG Zheng-guo, WEI Ying-hui, CUI Tian-xie, PAN Qi-fa, HOU Li-feng 325

Effect of the Deformation Twin Density on the Corrosion Behavior in TWIP Steel

CHU Guo-dong, WEI Ying-hui, LI Da-zhao, TIAN Yun 331

Study of Bake Hardenability and Strengthening Mechanism ofHot Rolled Low Carbon Steel

LI Wei-juan, WANG Guo-dong 337

Modeling Study of the Particle Pinning Effect on the Grain Boundary Movement

WANG Xue-lun, FU Li-ming, WANG Wei, JIA Zhi-xin 342

Explore the Strengthening Mechanisms of the Ultra-Low Carbon and Low Alloy Steel

LIU Pan, LI Hong-mei, LIU Rong-pei, BAO Yao-zong 346

Formation ofIntragranular Ferrite During Isothermal/Thermomechanical Processes in a Medium Carbon

V-Ti-N Microalloyed Steel XU Lei, LIU Guo-quan, NIE Yu-zhu, WANG Xue-hui, MAE 350

Study on Microstructure Refinement of Vanadium and Nitrogen MicroalloyedLow Carbon Bainitic Steel

GAO Fei, WANG Rui-zhen, QIAN Tian-cai 355

Effect ofAluminum and Titanium Treatment on Non-Metallic Inclusions and Microstructures of CGHAZ

in HSLA Steel CHAI Feng, YANG Cai-fu, SU Hang, ZHANG Yong-quan, ZHANG Dan-dan 360

Effect of Sulfur Contents on Fracture Toughness of Wheel Steels for High Speed Train

MA Yue, PAN Tao, JIANG Bo, YANG Cai-fu, SU Hang, CUI Yin-hui, CHEN Gang 366

Characteristics ofHot Ductility in Steels Containing Nb, Ti SONG Hai-wu, QI Chang-fa, AI Xing-hui 372

Grain Growth of Deformation Induced Ferrite in V Microalloyed Low Carbon Steel During Controlled

Cooling Process WANG Kai, WANG Li-jun, WANG Qiang, HE Ji-cheng, LIU Chun-ming 377

Effect of Solute Drag and Precipitate Pinning on Austenite Grain Growth in Ti-Nb Microalloyed Steels

FU Li-ming, WANG Huan-rong, WANG Wei, SHAN Ai-dang 383

Determination of Optimal Recrystallization Annealing Temperature ofNb-Ti Microalloyed High Strength

IF Steel WANG Min-li, XIAO Li, ZHENG Zhi-wang, ZHANG Gong-ting 388

Process Metallurgy and Modeling

Effect ofVanadium Microalloying on the HAZ Microstructure and Properties of Low Carbon Steels

LI Y, Milbourn D, Baker T N 393

Annealing Response of Cold-Rolled Vanadium Microalloyed Sheet Steels

John G Speer, DavidK Matlock, Robert J Glodowski 404

Effect ofPost Weld Heat Treatment on Toughness of Base Metal of Nuclear Reactor Pressure Vessel

Steel A533B LI Yun-liang, ZHANG Han-qian, FU Li-ming, CHEN Jiang-biao, LI Jin-fu 412

Q-P Process Optimization With the Use of Quenching Dilatometer

Hauserova Daniela, Novy Zbysek, Motycka Petr, Dzugan Jan 417

Performance Study of Copper-Bearing High Strength Ship-Hull Steel

LUO Xiao-bing, YANG Cai-fu, SU Hang, CHAI Feng 422

Comparison of Microstructures and Properties Obtained After Different Heat Treatment Strategies ofHigh

Strength Low Alloyed Steel.. .Kucerova Ludmila, Jirkova Hana, Hauserova Daniela, Masek Bohuslav 427

Study on Quenching and Tempering Process of Q960 High Strength Steel for Construction Machinery

WANG Zhao-dong, KANG Jian, LU Feng, DENG Xiang-tao, WANG Chao, WANG Guo-dong 432

The Effect of Microstructure of Hot Rolled Alloy Steel Wire Rods on Cold Heading Annealing Process

DENG Su-huai, WANG Li-ping, LI Su-jia, XIAO Shu-yong 437

Effect of Thermal Drilling Condition on Burring in Ultrahigh Strengh TRIP Sheet Steels

Akihiko Nagasaka, Takuya Matsushima, Shun Hasebe, Koh-ichi Sugimoto, Toshio Murakami 442

High Power Laser Powder Deposition Repair of AISI4340 Steel in Aircraft Applications Sun

Shi-da, Mohammed Reza D, Liu Qian-chu, Janardhana Madabhushi, Brandt Milan, Clark Graham 447

The Effect ofAnnealing Processes on Fish-Scaling Resistance in V-Ti-N Microalloyed Low Carbon Steel

Sheets for Enameling SUN Quan-she, XU Chun 452

Different Roles of Microalloying in Thin Slab Direct Rolling Technologies

Rodriguez-Ibabe Jose M, Uranga Pello, Lopez Beatriz 459

Effect ofProcessing Parameters on Crystal Orientation of Microstructure in High Niobium-Bearing

Microalloyed Steel SHANG Cheng-jia, MIAO Cheng-liang, Subramanian S V 466

Application HTP Process to Produce X80 Strip for 2nd West-East Gas Pipeline Project

LI Yong-dong, LI Ming, ZHANG Yong-qing, JIN Wei, LIU Jian-hui, LI Fei 471

Effect ofThermo-Mechanical Processing on Precipitate Formation in Next Generation HSLA Steel

Mukherjee S, Timokhina IB, ZHU C, Ringer S P, Hodgson P D 478

Microstructure Refinement and Precipitation Characteristics ofTMCP-Processed Plates for Pipeline

Applications Nastich S. Y., Morozov Y. D., Matrosov M. Y., Galkin V. V., Denisov S. V. 482

Process Control for Structure of Martensite/Austenite Islands of 15.3 mm X100 Pipeline Steel in BX Steel

XU Xue-li, ZHAO Ke, ZHAO Di, WANG Wen-fei 487

OptiLam: Design of Optimised Rolling Schedules

B Pena, M Arribas, A R Carrillo, JI Barbero, J Calvo, S Yue 492

Effect of Cooling Rate on the Room Temperature Microstructure Following the Intercritical Deformation

ofSteel S460 Hinton John S, Palmiere Eric J, Rainforth W. Mark 500

Multi-Pass Simulation of Heavy Plate Rolling Including Intermediate Forced Cooling

B. Xiao, E. J. Palmiere, A. A. Howe, H. C. Carey 506

Thermomechanical Control Process and Its Effect on Structure and Properties of High Strength Low Alloy

Steels SinghRKP 511

Non-Metallic Inclusions in HSLA Steel - Origin, Detection and Refractory Systems to Improve Cleanness

Dettela Heiko, Klenner Gerald, Cappel Juergen, Wuennenberg Klaus 521

Calculation ofthe Transition Temperature for Partitioned Growth of Proeutectoid Ferrite in Fe-C Base

MulticomponentAlloys ZHANG Guo-hong, SUH Dong-woo 530

Continuous Casting ofDemanding HSLA Steel Grades for Heavy Plate Application Bernhard Hoh 53 5

Low-Carbon, Mn-Si Cast Steel Structure Modification by Fluidized Bed Heat Treatment

Jasinski Jozef, Podsiad Piotr, Jasihski Jaroslaw, Bui Arnold, Kaczmarczyk Andrzej 541

Influence of Casting Technique on the Mechanical Properties of Bimetal Composites

RONG Shou-fan, GUO Ji-wei, ZHU Yong-chang, BIAN Wen-li, DU Jie-min 546

Slab and Level 2 Automation Design Guidelines for Optimum Metallurgy and Productivity for Plate and

Steckel Mills Stalheim, Douglas 550

Quality Control for Continuously Cast Slab ofHigh Strength Weathering Steel Q450NQR1

CHEN Yong, PAN Hong, WU Guo-rong 557

Variation ofNon-Metallic Inclusions Composition in X80 Pipeline Steel Refined by High Basicity Slag

LI Qiang, WANG Xin-hua, LI Hai-bo, HUANG Fu-xiang, YANG Jun, WANG Wan-jun 563

Technical Study on Ultra-Low Sulfur Steel Production in Ansteel XU Xiang-yang 567

Effects ofCoiling Temperature on Strength, Yield Ratio and Precipitation Behaviors ofHot Rolled High

Strength Microalloyed Steel for Cold Forming XU Jian-qiu, JIA Yue-cai, LI Hua-long 572

The Applications and Practice of Front Ultra Fast Cooling Technology in C-Mn Steel

ZUO Jun, LIU Yong, ZHANG Kai-hua, YE Xiao-yu, LI Wei-ping, HUANG Xu-jing 576

Effects ofTMCP Parameters on the Microstructure and Mechanical Properties of Nb-Bearing Spring Steel

ZHANG Chao-lei, LIU Ya-zheng, ZHOU Le-yu, JIANG Chao, SUN Xiao-jun 581

Determination of Critical Temperatures in Hot Rolling of a Nb-Microalloyed Steel Sheet

Daavood Mirahmadi Khaki, Vahid Alizaadeh Otaaghvar 585

Effect of Hot Rolling Practice on Microstructure and Mechanical Properties of Fire-Resistant Steel

ZHANG Yu, PAN Xin, GUO Hui-ying 590

Influence of Controlled Rolling and Cooling Process on the Mechanical Properties of Low Carbon Cold

Forging Steel LI Zhuang, WU Di, ZHENG Hui, DONG Xue-xin 595

The Effect ofPre-Deformation at Elevated Temperatures on the Microstructure and Hardness of Boron

Steel 22MnB5 MIN Jun-ying, LIN Jian-ping, XIN Li-jiu, LI Jia-yue, DING Lei, FENG Qi 600

High-Temperature Mechanical Properties ofShipbuilding Steel BC in Continuous Casting

DONG Zhi-hua, CHEN Deng-fu, SONG Li-wei, HU Hui, YANG Xing-lei 605

The Study on the Microstructure and Mechanical Properties of 400MPa Grade Bar Prepared by Controlled

Cooling After Finish Rolling ZHANG Jun-wei, DING Lei, XIAO Yi, HU Xiao-dong, HU Lin 610

Effects of Technological Parameters on Microstructures and Properties of Low Cost Hot Rolled

Dual-Phase Steel on CSP Line DONG Rui-feng, LI De-gang, YAN Bo, WANG Guo-dong 615

Analysis on the Microstructure and Performance Evolvement ofAlloyed Tool Steel Hot Rolling Strip

Produced by CSP Technology CHEN Jing-hu, JIE Xiao-hua 621

Effect ofFinish Rolling Temperature on Microstructure and Mechanical Properties ofHigh Grade Pipeline

Steel TANG Xing-chang, KANG Yong-lin, BO Yan-yan 625

Effects ofRolling Processes on Bainite and Mechanical Properties of Ultra-High Strength Pipeline Steel

ZHANG Kai, ZHAO Yu, QIU Chun-lin, LI Si-jun, DU Lin-xiu, WU Di 629

Effect ofTempered Temperature on Microstructure and Properties of 150mm 610MPa Grade Ultra-Heavy

Plates WU Bin, JIN Ru, SUI He-long, JIANG Zhong-hang, WANG Quan-li, BAI Xue-jun 633

Effect of Heat Treatment on Microstructure and Mechanical Properties of HB400 Grade High Strength

Abrasion Resistant Steel

ZHEN Fan, WANG Wei, YANG Han, CHEN Shao-hui, ZHANG Xiao-bing, QU Jin-bo 637

Vibration-Induced Friction Temperature Field Analysis Under Different Working Condition ofHeavy

Load Bolt LIANG Feng-rui, SU Hang, YANG Cai-fu 641

Analytical Models for the Design of High Strength Steel Tailor Welded Blanks

CHEN Shui-sheng, LIN Jian-ping, LIU Jing, WANG Bin 646

Products and Applications

Evolution of Microalloyed Linepipe Steels With Particular Emphasis on the "Near Stoichiometry" Low

Carbon, 0.10 Percent Niobium "HTP" Concept Gray J. Malcolm 652

Effect of Nb on Austenite Formation and Decomposition in an X80 Linepipe Steel

Fateh Fazeli, Matthias Militzer 658

Analysis of Microstructure and Orientation in X80 Line Pipe Steels

JI Ling-kang, LI Yang, MENG Li, LI He-lin 664

Metallurgical Optimization of Microalloyed Steels for Oil and Gas Transmission Pipelines

Stalheim, Douglas 669

Research on Alloying Design and Process Control for XI00 Hot-Rolled Strips

JIA Shu-jun, LIU Qing-you, PENG Ling-li, QU Peng 675

Cool Deformation Properties of an X70 Industrial Steel

S.H.Mousavi Anijdan, S.Nafisi, L.Collins, S.Yue 681

Investigation of Mechanical Property of Oil Tube Steel P110S in High Temperature and High Pressure

Environment Containing H2S/C02

LI Xiao-dong, QI Ya-meng, CHEN Chang-feng, DONG Xiu-cheng 685

The HIPERC Project: the Use of Nb for High Performance and Economy in Steel for Linepipe and

General Structural Use Webster Stephen, Drewett Lyn 690

Comprehensive Control on Microstructures and Properties of Medium Carbon V-N Microalloyed Steel

Seamless Oil-Well Tubes ofHot-Rolling Non-Quenched/Tempered

LIU Sheng-xin, LIU Guo-quan, CHEN Yong, ZHANG Yong-gang, HUANG Jian-kai 696

Controlling Properties ofHSLA Line Pipe Steels for Oil and Gas Applications

Mukhopadhyay Ananya, Polo Andrea 701

Microstructure and Mechanical Properties of Nb-Microalloyed XI00 High Deformability Pipeline Steel

MENG De-liang, KANG Yong-lin, AN Shou-yong, XIA Dian-xiu, SUN Hao, ZHENG Xiao-fei 707

Role ofNiobium in Advanced High Strength Steels for Automotive Applications

Bhattacharya, Debanshu 712

The Application of HSLA Steel on Car Body BAI Jian-ren 718

A Study of Spot Welding ofAdvanced High Strength Steels for Automotive Applications

Bhole S. D., Ma C, Khan M.S., Chen D.L. 724

Improvement of Mechanical Properties ofAutomotive Components Using Hot Stamping With Integrated

Q-P Process Masek Bohuslav, Jirkova Hana, Kucerova Ludmila, Zemko Michal 730

Development and Application of Non-Quenched and Tempered Steel for Auto Forging Components in

China ZHANG Ying-jian, CHEN Si-lian, DONG Han, HUI Wei-jun, PENG Jun 735

Investigation on Precipitation Hardening High Strength IF Steel Sheet for Automotive Application

WANG Xu, LIU Ren-dong, WANG Ke-qiang, GUO Jin-yu, LIN Li, XU Rong-jie 742

The Promotion ofChinese Automobile Lightweight Technical Progress by Mechanism Innovation

WANG Zhi-wen, ZHANG Ning 747

Properties and Metallurgical Aspects of Heavy Wall Q&T Line Pipe Steels

Eloy Martinez R 752

The Research and Development ofHot Rolling Marine Sorbite Rail Steel

YANG Zhong-min, JI Yu 756

Inclusion Characterization in High Strength Low Alloy Steel for Pipeline Application

YANG Yin-dong, Wu Paul, ZHANG Gui-fang, McLean Alex 762

Wettability of 610MPa Grade High Strength Plate Steel 12MnNiVR for Oil Storage Tanks

YANG Han, ZHAO Wen-gui, HUA Yan-ping, CHEN Shao-hui, ZHANG Xiao-bing, QU Jin-bo 769

High Strength Low Alloy (HSLA) Steels in Building Construction

Sivakumaran Ken Siva, Jansto Steven G 773

Effect of Nb-V Microalloying on Microstructures and Mechanical Properties of Medium Carbon

Non-Quenched and Tempered Steel

CHENG Hui-jing, WANG Fu-ming, LI Chang-rong, ZHANG Bo, XIA Yun-jin 779

Combined Effects ofNb and B MicroAlloying in Molybdenum Based Ultra Low Carbon Bainitic (ULCB)

Steels Hardy Mohrbacher 785

Effect ofAlloying Element on Process Control of High Strength Hot-Rolled Dual Phase Steel

ZHOU Le-yu, LIU Ya-zheng, HU Xue-wen, ZHANG Da-wei 792

High Strength Steel Plates for Large Container Ships

Chang-Sun Lee, Sangho Kim, In-Shik Suh, Kyung-Keun Um, Ohjoon Kwon 796

21st Century Niobium-Bearing Structural Steels Jansto Steven 803

Low Cost High Performance Steel Plate With Superior HAZ Toughness for Large Heat Input Welding

WANG Huan-rong, WANG Wei, LIU Gang 808

Effect of High-Performance Steel on the Tension Stiffening and Cracking Behavior of Reinforced

Concrete (RC) Tension Ties Yun Hyun-do, Lee Young-oh, Ryu Seung-hyun, Seo Soo-yeon 812

Development of JG785E High Strength High Toughness Steel Plates FENG Yong 817

Warm Forged Medium Carbon V Steel

Carlos Garcia-Mateo, Beatriz Lopez, Jose Maria Rodriguez-Ibabe 822

An Analysis on Application and Trend of Low-Alloy Steel in Shipbuilding and Offshore Engineering

Industry LI Xin-xin, NA Rong-qing, MENG Zhao-chuang 827

Microstructure Development for Brittle Fracture Control in Nb Microalloyed Line Pipe Steel

Subramanian, Laurie Collins, MIAO Cheng-liang, SHANG Cheng-jia, Jitendra Patel 831

Recent Development and Applications ofV Microalloying Technology in China

YANG Cai-fu, SU Hang, CHAI Feng, PAN Tao, ZHANG Yong-quan 836

Development of Nb Microalloying Technology in China During 11th Five-Year Period HOU Huo-ran 843

Development of Low Carbon Microalloyed High Strength Ultra-Thin Cast Strip Products Produced by the

Castrip® Process With Excellent Strength-Ductility Properties

C.R. Killmore, K.R. Carpenter, H.R. Kaul,

D.G. Edelman, C. Zhu, J.M. Cairney, S.P. Ringer, J.G. Williams, P.C. Campbell, W.N. Blejde 846

Investigation on the Mechanical Properties at Room Temperature of Q and P Steel Sheet With Ultrahigh

Strength LIN Jian-ping, MIN Jun-ying, YE You, XIN Li-jiu, DING Lei 851

Influence ofPre-Deformation on Springback Effect ofAdvanced High Strength Steel

Chongthairungruang Bunyong, Uthaisangsuk Vitoon, Suranuntchai Surasak, Jirathearanat Suwat 855

Mechanical Behavior of CrMo4 Steel With Dual-Phase Microstructure

A Salemi, A-H Golestaneh, E Moosavi-Khoonsari 862

Microstructure-Property Relationship of High Strength Low Alloy Steels During Tensile Testing at High

Strain Rates Moss Matthew, Timokhina liana, Hodgson Peter 869

Effect of Structure Pattern on the Performance ofX80 Pipeline Steel

REN Yi, LIU Wen-yue, WANG Shuang, ZHANG Shuai 874

An Experimental Study on the Behavior of Square Concrete-Filled High Strength Steel Tube Columns

Hyung-suk Jung, Chang-sik Choi 878

Study on the Corrosion Resistance of Multiphase TRIP Steels

WANG Ji-jie, WU Di, LI Zhuang, GUO Xiang-min, HE Chun-lin, CAI Qing-kui 883

Structural Integrity Assessment of Welded Pressure Vessel Produced ofHSLA Steel

Milovic Ljubica, Vuherer Tomaz, Zrilic Milorad, Momcilovic Dejan, Jakovic Dragan 888

A Strategy ofAvoiding Delayed Fracture in Ultrahigh Strength Automotive Steels by Nb Microalloying

Hardy Mohrbacher 893

Analysis and Control on Fracture of 20Mn2A High Tensile Steel for Round Link Chain

CAO Shu-wei, KANG Yong-lin, ZHAO Xian-ping, YANG Chang-chun 898

Influence of Mo Content on Microstructure and Mechanical Properties of Fire-Resistant Construction

Steel TONG Ming-wei, YUAN Ze-xi, ZHANG Kai-guang, RUI Xiao-long 903

Development and Production ofX120 Strip With Excellent Toughness in Shougang Steel

ZHANG Yong-qing, LI Ming, LI Yong-dong, JIN Wei,

ZHU Guo-sen, LI Yan-feng, TIAN Peng, WANG Quan-Ii, WU Xin-Iang, WANG Xue-qiang 908

Development of High Deformation X70 Pipeline Steel Plates in NISCO

LIU Zhao-xia, LI Xiao-ling, CHEN Yuan-shu, SONG Shi-jia 915

Experimental Research ofVanadium-MicroalloyedXI00 Pipeline Steels

LI Shao-po, JIANG Zhong-hang, MA Qing-shen, WANG Wen-jun 920

Structural Resistance of SRC Column-Steel Beam Joint Developed for Innovative Construction of

Buildings Seo Soo-yeon, Yun Hyun-Do, Kim Seung-hun 924

Study ofthe Microstructure and Properties of ER70S-6 Wire Rods

HUANG Zhi-jun, WANG Yu-tao, XIONG Yan 929

The Microstructure Mechanical Property Characteristic of lCrl7/9Crl8MoVMultilayered Plates

XIE Guo-liang, WANG Yan-lin, LIU Jing, HAN Jing-tao, GAO Gang 933

Investigation on the Failure Mechanism of DP590-22MnB5 (Quenched) and DP590-DP590 Spot-Welding

Joints XIN Li-jiu, MIN Jun-ying, LIN Jian-ping, FENG Qi 936

Analysis and Discussion on Controlling Inclusions in the Heavy Steel Plate of Wugang

LI Jing-tao, ZHU Yi-jin, MO De-min 941

Microstructures and Mechanical Properties of a New Low Carbon Bainitic Weathering Steel

ZHANG Si-xun, CUI Wen-fang, DONG Jie, LIU Chun-ming 947

Corrosion Behavior ofWeathering Test Steel for Bridge Under the Neutral Wet/Dry Alternate Condition

XU Xiao-lian, ZHONG Bin, AI Fang-fang, CHEN Yi-qing, XIAO Yu, LI Lin 951

Mechanical Properties Optimization Metal Bars and Sheets Made of 34CrNiMo6 Steel

Dzugan Jan, Novy Zbysek, Motycka Petr, Martinkova Jana, Martinek Petr 956

Development and Production of HSLA Wear-Resistant Steel

CAO Yi, WANG Zhao-dong, WU Di, WANG Guo-dong, ZHANG Ti 961

The Contribution of Niobium Bearing Steels and Enhanced Sustainability Jansto Steven 966

Development of A Series NV-F Grade Extra High Strength Plate Steels for Offshore Structure and

Shipbuilding LIU Dong-sheng, CHENG Bing-gui 971

Study on Heat Treatment Process ofAB/EQ56 Steel Plate

ZHANG Zhi-jun, YU Zhong-xin, YANGYue-hui 978

Research on the Welding Process of 590MPa Grade High Strength Automobile Beam Steel

ZHANG Wu, HU Xue-wen, LIU Yong-gang, YANG Xing-Hang, ZHANG Jian 983

Development of 600MPa Cold Rolled Dual Phase Steel for Automotive Application in BX Steel

GAO Hong-gang, CHEN Li-hong, LIU Ming-hui, YU Wen-tao, WANG Ya-fen 987

Development of 340MPa Grade Galvanized Automotive HSLA Sheet of Shougang

QI Chun-yu, LIN Li-bin, ZHOU Jian, LIU Guang-ming, YIN Xian-dong 990

Development of 600MPa High Aluminum Cold Rolled Dual Phase Steel and Its Application

WANG Hui,

LIN Cheng-jiang, DENG Zhao-jun, GONG Tao, TAN Yun-gang, YAN Fei, YANG Peng 994

The Development of Hot Rolled Automobile Beam Steel Plates 500L-Z With Excellent Surface Oxide

Layer SHI Xiao-guang, HAN Bin, XU Xin, DONG Yi, LIU Ren-dong 999

Effect of BainiticTreatment on Microstracture and Mechanical Properties of TRIP Cold-Rolled Steel

Sheets JING Cai-nian, LIU Jing-guang, YU Cheng-xue, WANG Zuo-cheng, Kim Sung-joon 1004

The Development on 610MPa Grade Plot Rolled Sheet for Automobile Crossbeam in Pangang

ZHANG Kai-hua, YE Xiao-yu, ZUO Jun, ZHANG Gong-ting 1008