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BERYLLIUM 1977

CONTENTS

Foreword

Paper 1

CONFERENCE PREPRINT

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Paper 2

Paper 3

Paper 4

Paper 5

Paper 6

Paper 7

Paper 8

Paper 9

Paper 10

Paper 11

Paper 12

Paper 13

Paper 14

universitAtsbibuothekhannover

technischeinformationsbibuothek

Dr A J Martin (Chairman of the Conference Organising Committee)

KEYNOTE PAPER

Dr D Webster (Lockheed Palo Alto Laboratories, California, USA)

BERYLLIUM-RICH INTERMEDIATE PHASES IN BERYLLIUM ALLOYS

Professor G V Raynor (University of Birmingham)

THE CALCULATION OF POINT AND PLANAR DEFECT FORMATION ENERGIES

IN BERYLLIUM

Dr T A Myers (University of Manchester)

STACKING FAULTS IN BERYLLIUM

Dr F Aldinger and S Jonsson (Max Planck Institut fur

Metallforschung, Stuttgart, West Germany)

SUBSTRUCTURAL PECULIARITIES OF BERYLLIUM SINGLE CRYSTALS GROWN

BY DIFFERENT METHODS

Drs. A S Kapcherin, I I Papirov, G F Tikhinskij and S S Avotin

(Physico-Technical Institute, Kharkov, USSR)

THE CELL STRUCTURE FORMATION IN DEFORMED BERYLLIUM

Drs. L A Kornienko, A A Nikolaenko, I I Papirov, I A Taranenko*

and G F Tikhinskij (Physico-Technical Institute, Kharkov)

CRYSTALLITE FORMATION IN BERYLLIUM

H M Lindsay and Dr J S White (AWRE, Aldermaston)

PLASTIC AND SUPER PLASTIC DEFORMATION OF FINE-GRAINED

HIGH-PURITY BERYLLIUM

Professor V E Ivanov and Drs. G F Tikhinskij, I I Papirov,I A Taranenko, E S Karpov and A S Kapcherin (Physico-TechnicalInstitute, Kharkov)

MICROPLASTICITY IN HOT-PRESSED BERYLLIUM

Professor W Bonfield (University of London) and Dr R C Plane

(Plymouth Polytechnic)

EFFECT OF STRUCTURAL FACTORS AND IMPURITIES ON THERMALLY

ACTIVATED DEFORMATION OF BERYLLIUM

Drs. I I Papirov, G F Tikhinskij, S S Avotin, I N Ghristenko

and A S Kapcherin (Physico-Technical Institute, Kharkov)

STEREOLOGICAL ANALYSIS OF LOCKALLOY MICROSTRUCTURES

Professor E E Underwood (Georgia Institute of Technology,

Atlanta, USA)

ON THE OCCURENCE AND REMOVAL BY THERMAL TREATMENT OF MICROCRACKING

ARISING DURING THE UNIAXIAL TENSILE DEFORMATION OF HIGH PURITY

BERYLLIUM

G I Turner and R A Lane (AWRE, Aldermaston) and R A Lancaster

(University of Bradford)

THE INHERENT MECHANICAL PROPERTIES OF BERYLLIUM

S F Pugh (AERE, Harwell)

EFFECT OF OXIDE AND GRAIN SIZE IN HIGH-PURITY BERYLLIUM

Dr F Aldinger, E Gold and Professor G Petzow (MaxPlanck Institut,

Stuttgart)

Paper 15 . THE EFFECT OF POWDER PARTICLE SIZE ON THE MECHANICAL PROPERTIESOF HOT PRESSED HIGH PURITY BERYLLIUM

G I Turner and R A Lane (AWRE, Aldermaston)

Paper 16, .

HIGH-STRENGTH BERYLLIUM BLOCK

N P Pinto and G H Keith (Kawecki Berylco Industries Inc., Reading,Pennsylvania, USA)

Paper 17 STRENGTH-DUCTILITY RELATIONSHIPS IN INTERMEDIATE PURITY HOT-PRESSEDBERYLLIUM

A J Stonehouse, C A Bielawski and R M Paine (Brush Wellman Corporation,

Cleveland, Ohio, USA)

Paper 18 TEMPERATURE EFFECTS ON MECHANICAL PROPERTIES OF CIP/HIP-L BERYLLIUM

J F Dignam, L R Aronin, Dr S C Chou and J H Rainey (AMMRC, Watertown,Massachusetts, USA)

Paper 19 STRAIN RATE AND REVERSE LOADING EFFECTS ON HIP-50 BERYLLIUML R Aronin, Dr S C Chou, J F Dignam and J H Ra ney (AMMRC)

Paper 20 MECHANICAL BEHAVIOUR OF CIP/HIP-1 BERYLLIUM AS A FUNCTION OF STRAIN

RATE AND STRESS HISTORY

Dr S C Chou, L R Aronin, J F Dignam and J H Rainey (AMMRC)

Paper 21 A JOINT FRACTURE TOUGHNESS EVALUATION OF HOT-PRESSED BERYLLIUM

Professor H Conrad and G A Sargent (University of Kentucky) andW F Brown, Jr. (NASA Lewis Research Center, Cleveland, Ohio, USA)

Paper 22 PROPERTIES AND YIELD BEHAVIOUR OF HOT-MACHINED BERYLLIUM

Dr E H Rennhack (Lockheed Missiles and Space Company, Inc., Sunnyvale,California, USA)

Paper 24 THE EFFECTS OF POROSITY ON THE MECHANICAL AND PHYSICAL PROPERTIESOF BERYLLIUM

Dr D Beasley and Dr R E Cooper (AWRE)

Paper 25 THE ELECTRON MICROSCOPIC'OBSERVATION OF BERYLLIUM AND ITS ALLOYSIRRADIATED. AT ELEVATED TEMPERATURE

Professor Y Mishima, S Ishimo and S Shiozawa (University of Tokyo, Japan)

Paper 26 ELECTRON IRRADIATION DAMAGE IN BERYLLIUM IN A HIGH VOLTAGE ELECTRONMICROSCOPE

Dr G J C Carpenter (Atomic Energy of Canada Ltd, Chalk River) andR G Fleck (Ontario Hydro Research Division, Toronto, Ontario, Canada)

Paper 28 WROUGHT HIGH-PURITY BERYLLIUM PRODUCTSN P Pinto and G H Keith (Kawecki Berylco Industries, Inc.)

Paper 29 THE PRESS FORMING AND SPINNING OF INGOT SHEET BERYLLIUMR E Evans (AWRE)

Paper 30 GRAIN REFINEMENT OF WROUGHT BERYLLIUM BY ALLOYING

Dr D Webster (Lockheed Palo Alto Research Laboratory)

Paper 31 BERYLLIUM WITH CONTROLLED POROSITYN P Pinto (Kawecki Berylco Industries, Inc.) and H D Hanes (BattelleColumbus Laboratories, Ohio, USA)

Paper 32 HOT ISOPRESSING BERYLLIUM - THE EFFECT OF TEMPERATURE AND PRESSURED Roberts, J N Lowe and G I Turner (AWRE)

Paper 33 THE DEVELOPMENT, EVALUATION AND MANUFACTURING CAPABILITY OF BERYLLIUMBAR STOCK USING THE CIP-HIP PROCESS

J N Lowe and G I Turner (AWRE) and J E J Bunce (Royal Ordnance Factory,Cardiff)

Paper 34 HIP FABRICATION OF EXPERIMENTAL MIRROR STRUCTUREJ J Mueller (Battelle Columbus Laboratories, Ohio)

Paper 35 THE NATURE OF PLASMA SPRAYED BERYLLIUM AND THE EFFECT OF HEATTREATMENT

Dr I W Dunmur, N Davey and T R Moules (AWRE)

Paper 36 EFFECT OF SOME TYPES OF MACHINING PROCESSES ON BERYLLIUM FATIGUESTRENGTH PROPERTIES

M Armbruster (Aerospatiale Central Laboratory, Suresnes, France)

Paper 37 OBSERVATIONS ON MACHINING DAMAGE IN BERYLLIUMR E Evans (AWRE)

Paper 39 ADHESIVE BONDING OF BERYLLIUMDr R E Cooper, C Kerr and P Walker (AWRE)

Paper 40 THE ADHESIVE BONDING OF BERYLLIUM STRUCTURAL COMPONENTSR C Fullerton-Batten (Kawecki Berylco Industries, Inc.)

Paper 41 DIFFUSION BONDING OF BERYLLIUMM Armbruster and P Renard (Aerospatiale Central Laboratory)

Paper 42 SOME ASPECTS OF THE CORROSION AND PROTECTION OF FULLY DENSE ANDPOROUS BERYLLIUM

B T Weatherill and Dr R G Loasby (AWRE)

Paper 43 BERYLLIUM DEVELOPMENT PROGRAMME IN INDIAE S Subbarao, B P Sharma, C M Paul and C V Sundaram (Bhabha AtomicResearch Centre, Bombay, India)

Paper 44 PROMPT RESPONSE MONITORING OF BERYLLIUM IN AIRI J Wilson (AWRE)

Paper 45 A NON-CHEMICAL SPECTROSCOPIC DETERMINATION OF ATMOSPHERIC BERYLLIUM

Dr J Kapur (Occupational Medicine and Hygiene Laboratories, London)

Paper 46 THE PROBLEM OF A THRESHOLD LIMIT VALUE OF BERYLLIUM AND ITS SALTS

Professor H Zorn (Institut fur Arbeitsmedizin, Universitat Tubingen)and Th Stlefel (Max Planck Institut, Stuttgart, West Germany)

Paper 47 THE NATURE OF BERYLLIUM DISEASEDr W Jones Williams (Consultant Pathologist, Llandough Hospital,

Penarth, Cardiff, and Honorary Clinical Teacher, Welsh National

School of Medicine, Cardiff)

Paper 48 CONFIDENCE IN BERYLLIUM (Keynote Paper)S L Channon (The Aerospace Corporation, Los Angeles, California, USA)

Paper 49 A REVIEW OF PRESENT AND FUTURE APPLICATIONS OF BERYLLIUM

R C Fullerton-Batten and J A Hawk (Kawecki Berylco Industries, Inc.,

Reading, Pennsylvania, USA)

Paper 50 BERYLLIUM IN AIRCRAFT BRAKESS Zenczak (Brush Wellman Inc., Cleveland, Ohio, USA)

Paper 51 BERYLLIUM AS A NUCLEAR FUEL CLADDING MATERIAL

S F Pugh (AERE, Harwell)

Paper 53 OPTICAL APPLICATION OF BERYLLIUM

W Caithness (Applied Optics Center Corp., Burlington, Massachusetts)

R C Fullerton-Batten (Kawecki Berylco Industries, Inc.) and

R A Paquin (Perkin Elmer Corporation, Norwalk, Connecticut, USA)

Paper 54 THE DIMENSIONAL STABILITY OF GYROSCOPE MATERIALSD S Meston and Dr J S White (AWRE, Aldermaston)

Paper 55 BERYLLIUM SINGLE CRYSTALS FOR NEUTRON MONOCHROMATORSDr F Aldinger (Max Planck Institut) and Dr A Freund (Institut Maxvon Laue - Paul Langevin, Grenoble, France)

Paper 57 NEW AUDIO APPLICATIONS OF BERYLLIUM METAL

M Sato (NGK Insulators Ltd, Nagoya, Japan)

Paper 58 SUCCESSFUL APPLICATIONS OF FABRICATED BERYLLIUM STRUCTURES ONSATELLITES

L A Grant (Electrofuslon Corporation, Menlo Park, California, USA)

Paper 59 BERYLLIUM SATELLITE THRUST CONE DESIGN, MANUFACTURE AND TESTH Schneiter and D Chandler (Contraves AG, Zurich, Switzerland)

Paper 60 FABRICATION METHODS FOR BERYLLIUM SPACECRAFT COMPONENTS (SERIES 2)R G W Hathaway (British Aircraft Corporation, Filton)

Paper 61 STATISTICAL STUDY OF THE MECHANICAL PROPERTIES OF BERYLLIUM -IMPLICATIONS FOR DESIGN

Dr D G S Davies (Fulmer Research Institute, Slough)