_STP_651-1978.pdf

TOUGHNESS AND FRAaURE BEHAVIOR OF TITANIUM A symposium presented at May Committee Week AMERICAN SOCIETY FOR TESTING AND MATERIALS Toronto,Ontario,Canada,1-6 May 1977 ASTM SPECIAL TECHNICAL PUBLICATION 651 R.G.Broadwell and C.F.Hickey,Jr.symposium co-chairmen List price$28.50 04-651000-30#AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:33:04 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Copyright by American Society for Testing and Materials 1978 Library of Congress Catalog Card Number:78-55313 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,Md.July 1978 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:33:04 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The symposium on Toughness and Fracture Behavior of Titanium was presented at May Committee Week of the American Society for Testing and Materials held in Toronto,Ontario,Canada,1-6 May 1977.Committee J-1 on Effect of Temperature on the Properties of Metals,which is a joint committee of the American Society for Testing and Materials,American Society of Mechanical Engineers,and Metal Properties Council,spon-sored the symposium.R.G.Broadwell,TIMET,and C.F.Hickey,Jr.,Army Materials and Mechanics Research Center,presided as symposium chairmen.Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:33:04 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Fatigue and Fracture Toughness,STP 556(1974),$20.25,04-556000-30 Fractography-Microscopic Cracking Process,STP 600(1976),$27.50,04-600000-30 Cracks and Fracture,STP 601(1976),$51.75,04-601000-30 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:33:04 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.A Note of Appreciation to Reviewers This publication is made possible by the authors and,also,the un-heralded efforts of the reviewers.This body of technical experts whose dedication,sacrifice of time and effort,and collective wisdom in reviewing the papers must be acknowledged.The quality level of ASTM publications is a direct function of their respected opinions.On behalf of ASTM we acknowledge their contribution with appreciation.ASTM Committee on Publications Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:33:04 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Editorial Staff Jane B.Wheeler,Managing Editor Helen M.Hoersch,Associate Editor Ellen J.McGlinchey,Senior Assistant Editor Sheila G.Pulver,Assistant Editor Susan Ciccantelli,Assistant Editor Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:33:04 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 Fracture Resistance of Ti-5Al-2.5Sn Extra-Low Interstitial Castings C.F.FIFTAL,D.A.BOLSTAD,AND M.S.MISRA 3 Procedure 4 Results and Discussion 8 Conclusions 15 Meclianical and Microstructural Properties Cliaracterization of Heat-Treated,Beta-Extruded Ti-6AI-6V-2SnM.G.ULITCHNY,H.J.RACK,AND D.B.DAWSON 17 Experimental Procedures 18 Experimental Results and Discussion 21 Summary and Conclusions 37 Fracture Tougliness Beliavior of Unaged Beta-Ill TitaniumH.J.RACK 43 Experimental Procedures 44 Experimental Results 45 Discussion 51 Conclusions 60 Development of Higli Fracture Toughness Titanium AUoysJ.C.WIL-LIAMS,F.H.FROES,J.C.CHESNUTT,C.G.RHODES,AND R.G.BERRY-MAN 64 Experimental Procedure 66 Results and Discussion 67 Summary and Conclusions 108 Relationship of Fracture Toughness and Ductility to Microstructure and Fractographic Features in Advanced Deep Hardenable Titanium Alloys F.H.FROES,J.C.CHESNUTT,C.G.RHODES,AND J.C.WIL-LIAMS 115 Nomenclature 116 Experimental Procedures 117 Results 121 Discussion 143 Assessment of the State of the Art in Deep Hardenable Alloys 149 Summary and Conclusions 150 Influence of Composition,Annealing Treatment,and Texture on the Fracture Toughness of Ti-5Al-2.5Sn Plate at Cryogenic Tempera-turesR.H.VAN STONE,J.L.SHANNON,JR.,W.S.PIERCE,AND J.R.LOW,JR.154 Nomenclature 155 Material 156 Procedure 160 Results 161 Discussion 168 Conclusions 173 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:33:04 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Influence of Test Temperature on the Fracture Toughness and Tensile Prop