_STP_556-1974.pdf

FATIGUE AND FRACTURE TOUGHNESS-CRYOGENIC BEHAVIOR A symposium presented at the Seventy-sixth Annual Meeting AMERICAN SOCIETY FOR TESTING AND MATERIALS Philadelphia,Pa.,24-29 June 1973 ASTM SPECIAL TECHNICAL PUBLICATION 556 C.F.Hickey,Jr.,and R.G.Broadwell symposium cochalrmen List price$20.25 04-556000-30 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:13:42 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.?9 by American Society for Testing and Materials 1974 Library of Congress Catalog Number:74-76067 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,Md.July 1974 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:13:42 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword This special technical publication consists of eight papers presented during the symposium on Fatigue and Fracture Toughness of Metallic Materials at the Seventy-sixth Annual Meeting of the American Society for Testing and Materials held in Philadelphia,Pa.,24-29 June 1973.The symposium was sponsored by the Low Temperature Panel of the American Society for Testing and Materials,American Society of Mechanical Engineers,and Metal Properties Council Joint Committee on the Effect of Temperature on the Properties of Metals.C.F.I-Iickey,Jr.,Army Materials and Mechanics Research Center,and R.G.Broadwell,Titanium Metals Corporation of America,presided as symposium cochairmen.Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:13:42 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Fracture Toughness Testing at Cryogenic Temperature,STP 496(1971),$5.00(04-496000-30)Fracture Toughness Evaluation by R-Curve Methods,STP 527(1973),$9.75(04-527000-30)Progress in Flaw Growth and Fracture Toughness Testing,STP 536(1973),$33.25(04-536000-30)Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:13:42 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 Fracture Toughness of High-Strength Alloys at Low Temperature-J.E.Campbell Aluminum Alloys 4 Titanium Alloys 7 Steels 8 Inconel Alloy 718 15 Fatigue Crack Growth Rate Data 15 The Challenge for the Future 16 Discussion 21 Alloy,Texture,and Microstruetural Effects on the Yield Stress and Mixed Mode Fracture Toughness of Titanium-/.W.Rosenberg and W.M.Parris 26 Procedures 28 Experimental Results 31 Discussion 34 Conclusions 41 Flexural Fatigue Testing of Titanium Forging Material in Liquid Hydro-gen-N.R.Adsit,P.Dessau,and W.E.Witzell 44 Material 45 Procedure 46 Results 49 Statistical Treatment of the Data 49 Comparison of Results 54 Toughness Data for Monolithic High-Hardness Steel-C.F.Hickey,Jr.55 Materials 56 Test Procedure 56 Results and Discussion 59 Conclusions 66 Fatigue and Fracture Characteristics of High-Hardness,Laminar Composite Steel-R.Chait,C.F.Hickey,Jr.,and C.I-1.Curll 68 Materials and Test Procedure 69 Results and Discussion 72 Summary and Conclusions 82 Investigation of the Plastic Fracture of High-Strength Aluminum Alloys-R.H.Van Stone,R.H.Merchant,and J.R.Low,Jr.93 Materials 94 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:13:42 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Fractographic Study 96 Failure of the Large Second Phase Particles 97 Quantitative Metallography of Second-Phase Particles 105 Identification of the Second Phase Particles 108 Transmission Electron Microscopy 111 Discussion 115 Conclusions 123 Large-Scale Fracture Toughness Tests of Thick 5083-0 Plate and 5183 Welded Panels at Room Temperature,-260 and-320 G.Kaufman,F.G.Nelson,and R.H.Wygonik 125 Material 126 Weld Preparation and Qualification 126 Test Procedure 128 Results 137 Conclusions 156 Fatigue Crack Growth in Aluminum Alloy 5083-0 Thick Plate and Welds for Liquefied Natural Gas Tanks-R.A.Kelsey,G.E.Nordmark,and J.W.Clark 159 Material 161 Compact Tension Specimens 162 Surface-Flawed Plate Specimens 168 Predicting Growth of Cracks Under Spectrum Loading 176 Predicted Flaw Growth in Test Specimens 183 Summary and Conclusions 184 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:13:42 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.STP556-EB/Jul.1974 Introduction The symposium was organized to document the current state of the art in fatigue and facture toughness of aluminium,steel,and titanium allo