_STP_1085-1990.pdf

STP 1085 Quantitative Methods in Fractography Bernard M.Strauss and Susil K.Putatunda,editors ASTM 1916 Race Street Philadelphia,PA 19103 Copyright by ASTM Intl(all rights reserved);Thu Dec 31 13:55:23 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Library of Congress Cataloging-in-Publication Data Quantitative methods in fractography/Bernard M.Strauss and Susil K.Putatunda,editors.(STP 1085)Papers presented at a symposium held 10 Nov.1988 in Atlanta,Ga.,sponsored by ASTM Committees E-9 on Fatigue and E-24 on Fracture Testing.Includes bibliographical references.ASTM publication code number(PCN)04-010850-30-T.p.verso.ISBN 0-8031-1387-0 1.Fractography-Congresses.I.Strauss,Bernard M.,1946-II.Putatunda,Susil K.,1948-III.ASTM Committee E-9 on Fatigue.IV.ASTM Committee E-24 on Fracture Testing.TA409.Q36 1990 620.1 126-dc20 90-35242 CIP Copyright?9 by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1990 All rights reserved.No part of this publication may be reproduced,stored in a retrieval system,or transmitted,in any form or by any means,electronic,mechanicaL,photocopying,recording,or otherwise,without the prior written permission of the publisher.NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Peer Review Policy Each paper published in this volume was evaluated by three peer reviewers.The authors addressed all of the reviewers comments to the satisfaction of boththe technical editor(s)and the ASTM Committee on Publications.The quality of the papers in this publication reflects not only the obvious efforts of the authors and the technical editor(s),but also the work of these peer reviewers.The ASTM Committee on Publications acknowledges with appreciation their dedication and contribution of time and effort on behalf of ASTM.Printed in Battimore.MD June 1990 Copyright by ASTM Intl(all rights reserved);Thu Dec 31 13:55:23 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword This publication,Quantitative Methods in Fractography,contains papers presented at the symposium on Evaluation and Techniques in Fractography,which was held 10 Nov.1988 in Atlanta,Georgia.Two ASTM committees,Committees E-9 on Fatigue and E-24 on Fracture Testing,sponsored the event.The symposium cochairmen were Bernard M.Strauss.Teledyne Engineering Services,and Susil K.Putatunda,Wayne State University,both of whom also served as editors of this publication.Copyright by ASTM Intl(all rights reserved);Thu Dec 31 13:55:23 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Overview 1 Applications of Quantitative Fractography and Computed Tomography to Fracture Processes in Materials-STEPHEN D.ANTOLOVICH,ARUN M.GOKHALE,AND CLAUDE BATHIAS Relationships Between Fractographic Features and Material Toughness-D.P.HARVESt lI AND M.I.JOLLES 26 39 Quantitative Analysis of Fracture Surfaces Using Fractals-D.J.ALEXANDER Analysis and Interpretation of Aircraft Component Defects Using Quantitative Fractography-N.T.GOLDSMITH AND G.CLARK 52 Characteristics of Hydrogen-Assisted Cracking Measured by the Holding-Load and Fractographic MeIhod-NAOTAKE OHTSUKA AND HIROSHI YAMAMOTO 69 Fractographic Study of Isolated Cleavage Regions in Nuclear Pressure Vessel Steels and Their Weld Metals-x.J.ZHANG,A.KUMAR,R.W.ARMSTRONG,AND G.R.IRWIN 89 Fractographic and Metallographic Study of the Initiation of Brittle Fracture in Weldments-P.L.HARRISON,D.J.ABSON,A.R.JONES,AND D.J.SPARKES Cracking Mechanisms for Mean Stress/Strain Low-Cycle Multiaxial Fatigue Loadings-PETER KURATH AND ALl FATEMI Corrosion Fatigue Crack Arrest in Aluminum Alloys-R.J.H.WANHILL AND L.SCHRA Author Index Subject Index 102 123 144 167 169 Copyright by ASTM Intl(all rights reserved);Thu Dec 31 13:55:23 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.STP1085-EB/Jun.1990 Overview The past two decades have seen the development of fractography of materials from a research tool to an important everyday component of failure analysis and materials char-acterization.The vast body of work in this area has led to volumes of photographs describing fractographic features in general qualitative terms.It also has presented researchers with a foundation of evidence that quantitative assignment of selected parameters can relate specific fractographic features to material properties.On 10 Nov.1988,a one-day symposium,sponsored by ASTM Committees E-9 on Fatigue and E-24 on Fracture Testing,was held in Atlanta,Georgia,covering the latest developments and discoveries in both methodology and interpretation of quantitative fractographic meth-ods.It sought to provide a benchmark of progre