1、FRACTOGRAPHY MICROSCOPIC CRACKING PROCESSES A symposium presented at the Seventy-eighth Annual Meeting AMERICAN SOCIETY FOR TESTING AND MATERIALS Montreal,Canada,22-27 June 1975 ASTM SPECIAL TECHNICAL PUBLICATION 600 C.D.Beachem and W.R.Warke,editors List price$27.50 04-600000-30 AMERICAN SOCIETY FO
2、R TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:19:15 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.by AMERICAN SOCIETY FOR TEST
3、ING AND MATERIALS 1976 Library of Congress Catalog Card Number:76-705 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Tallahassee,Fla.June 1976 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:19:15 EST 2015Downloaded/pri
4、nted byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The Symposium on FractographyMicroscopic Cracking Processes was held at the Seventy-eighth Annual Meeting of the American Society for Testing and Materials held in Mont
5、real,Canada,22-27 June 1975.ASTM Committee E-24 on Fracture Testing of Metals sponsored the symposium.C.D.Beachem,Naval Research Laboratory,and W.R.Warke,Illinois Institute of Technology,served as symposium cochairmen.Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:19:15 EST 2015Downloaded
6、/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Application of Electron Microfractography to Materials Research,STP 493(1971),$8.25,04493000-30 Progress in Flaw Growth and Fracture Toughness Test
7、ing,STP 536(1973),$33.25,04-536000-30 Fracture Toughness and Slow-Stable Cracking,STP 559(1974),$25.50,04-559000-30 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:19:15 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further
8、reproductions authorized.A Note of Appreciation to Reviewers This publication is made possible by the authors and,also,the unheralded 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 acknowledg
9、ed.The quality level of ASTM publications is a direct function of their respected opinions.On behalf of ASTM we acknowledge with appreciation their contribution.ASTM Committee on Publications Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:19:15 EST 2015Downloaded/printed byUniversity of W
10、ashington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Editorial Staff Jane B.Wheelei,Managing Editor Helen M.Hoersch,Associate Editor Charlotte E.DeFranco,Senior Assistant Editor Ellen J.McGlinchey,Assistant Editor Copyright by ASTM Intl(all rights rese
11、rved);Mon Dec 21 11:19:15 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 TECHNIQUES Use of Fractography and Sectioning Techniques to Study Frac-ture MedianismsR.H.VAN STONE AND T
12、.B.COX 5 Discussion 28 Compariscm of Inclusion Distributions on Fracture Surfaces and in the Bulii of Carbon-Manganese Weldments D.E.PASSOJA AND D.C.HILL 30 ENVIRONMENT Environmentally Induced Transitions in Fatigue Fracture ModeW.L.MORRIS,J.D.FRANDSEN,AND H.L.MARCUS 49 Fractography as Related to Ma
13、crostructures in Stress Corrosion Cracked Welds in 5Ni-Cr-Mo SteelE.A.METZBOWER,C.T.Fujii,AND J.STOOP 62 Effects of Very Low Pressures on Fatigue Fracture Surface Fea-tures in Ti-6AL-4VD.A.MEYN 75 Discussion 87 Fractography of the High Temperature Hydrogen Attack of a Medium Carbon SteelH.G.NELSON A
14、ND R.D.MOORHEAD 88 MICROSTRUCTURE Relationship Between Mechanical Properties,Microstnicture,and Fracture Topography in a+/3 Titanium AlloysJ.C.CHESNUTT,C.G.RHODES,AND J.C.WILLIAMS 99 Fractography:Fracture Energy and Quantitative MetaUographic Correlation for Tungsten-Silver Composite MaterialsW.R.WA
15、RKE AND G.J.WITTER 139 Fractographic Features in Eutectic CompositesN.S.STOLOFF AND D.J.DUQUETTE 154 Discussion 171 Fracture Feature Anisotropy in a Martensitic Steel PlateR.H.SAILORS 172 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 11:19:15 EST 2015Downloaded/printed byUniversity of Washi
16、ngton(University of Washington)pursuant to License Agreement.No further reproductions authorized.STRESS Cyclic Plasticity of Copper at tlie Surface and in tlie InteriorYOSHIFUMI NAKANO AND B.I.SANDOR 193 Discussion 203 Micro-Medianistic Interpretation of Cyclic Crack Growtli Beliav-ior in 17-4 PH Stainless SteelsT.W.CROOKER,D.F.HASSON,AND G.R.YODER 205 Character of Fatigue Fracture Surface Micromorphology in the Ultra-Low Growth Rate RegimeR.W.HERTZBERG AND W.J.MILLS 220 A Fractographic Study of