_STP_459-1969.pdf

FATIGUE AT HIGH TEMPERATURE A symposium presented at the Seventy-first Annual Meeting AMERICAN SOCIETY FOR TESTING AND MATERIALS San Francisco,Calif.,23-28 June,1968 ASTM SPECIAL TECHNICAL PUBLICATION 459 List price$11.25 l AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 10:56:55 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.()BY AMERICAN SOCIETY FOR TESTING AND MATERIALS 1969 Library of Congress Catalog Card Number:72-89673 SBN 8031-00t6-7 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Lutherville-Timoniom,Md.November 1969 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 10:56:55 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword This Special Technical Publication contains most of the papers presented at a Symposium on Fatigue at High Temperature held in San Francisco,Calif.,during the Seventy-first Annual Meeting of ASTM,23-28 June 1968.The topic was chosen because of its current timeliness and interest to those seeking answers to pressing questions regarding elevated temperature material behavior.The sponsor of this symposium was the Task Group on Fatigue under Cyclic Strain,now Subcommittee VIII of the E-9 Committee on Fatigue.L.F.Coffin,Jr.,General Electric Company Research and Development Center,presided as symposium chairman.Copyright by ASTM Intl(all rights reserved);Mon Dec 21 10:56:55 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Electron Fractography,STP 436(1968),$11.00 Fatigue Crack Propagation,STP 415(1967),$30.00 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 10:56:55 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction.1 Effect of Temperature and Strain Rate on Low-Cycle Fatigue Resist-ance of AISI 304,316,and 348 Stainless Steels-J.T.BERLING AND T.SLOT.Low-Cycle Fatigue Study of Columbium Alloy D-43-R.W.SWINDEMAN.31 Effect of Temperature on the Fatigue of Nickel at Varying Oxygen Pressures-R.L.STEGMAN AND P.SHAHINIAN.42 Interactions Between Creep and Low-Cycle Fatigue in Udimet 700 at 1400 F-c.H.WELLS AND C.P.SULLIVAN.59 Effect of Creep-Rupture Ductility and Hold Time on the 1000 F Strain-Fatigue Behavior of a ICr-IMo-0.25V Steel-E.KREMPL AND C.D.WALKER.75 Influence of Temperature on Reversed Creep-MASAKI KITAGAWA,C.E.JASKE,AND JODEAN MORROW.100 High-Temperature Low-Cycle Fatigue Experiments on Hastelloy X-A.E.CARDEN AND T.B.SLADE.111 Some Microstructural and Alloying Effects Upon Low-Cycle Fatigue Life of Pressure Vessel Steels-R.A.DEPAUL AND A.W.PENSE.130 Effect of Microstructure on the Fatigue Properties of Ti-6A1-4V Bar-E.J.BARTLO.144 Copyright by ASTM Intl(all rights reserved);Mon Dec 21 10:56:55 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.STP459-EB/Nov.1969 Introduction The origin of interest in the subject of fatigue at high temperature is far from academic.High temperature is becoming a way of life with more and more of our engineering structures,and the means for accounting for the many effects which high temperature introduces must find its way into design criteria.Information generated on this subject can be applied in many areas in our advancing technology.Examples include the aircraft gas turbine,diesel engine,steam turbine,nuclear reactor,land-based gas turbine,and many other important applications.In each of these cases it is the design objective to provide reliable performance with a minimum of down time and cost of repair.Fatigue is encountered in these applications in several ways.One source is vibration as a consequence of rotation,or of fluid motion,and failure may result after a large number of stress cycles.Another source of fatigue is a consequence of start and stop operation,and is identified generally as thermal or low-cycle fatigue.Here strain is the controlling variable,induced mostly by temperature effects,such as thermal mismatch,temperature transients,etc.In conjunction with these effects,high temperature introduces a number of complications.Included are:(a)Gaseous or liquid environments introduce surface reactions which interact strongly with fatigue cracks to accelerate crack initiation,growth,and failure.(b)Long hold-time periods between cycles introduce creep effects which interact with fatigue,often by changing the mode of crack propagation from the more ductile transgranular mode to the more brittle intergranular type.(e)The material may change its prop