_STP_543-1974.pdf

HYDROGEN TESTING EMBRITTLEMENT A symposium presented at the Seventy-fifth Annual Meeting AMERICAN SOCIETY FOR TESTING AND MATERIALS Los Angeles,Calif.,25-30 June 1972 ASTM SPECIAL TECHNICAL PUBLICATION 543 Louis Raymond,symposium chairman List price$29.75 04-543000-26 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Mon Nov 23 09:52:50 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.BY AMERICAN SOCIETY FOR TESTING AND MATERIALS 1974 Library of Congress Catalog Card Number:73-87352 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,Md.January 1974 Copyright by ASTM Intl(all rights reserved);Mon Nov 23 09:52:50 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The symposium on Hydrogen Embrittlement Testing was given at the Seventy-fifth Annual Meeting of the American Society for Testing and Materials held in Los Angeles,Calif.,25-30 June 1972.Committee F-7 on Aerospace Industry Methods sponsored the symposium.Louis Raymond,The Aerospace Corporation,served as symposium chair-man.Copyright by ASTM Intl(all rights reserved);Mon Nov 23 09:52:50 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Fatigue at Elevated Temperatures,STP 520(1973),$45.50(04-520000-30)Fracture Toughness Evaluation by R-Curve Methods,STP 527(1973),$9.75(04-527000-30)Impact Testing of Metals,STP 466(1970),$21.25(04-466000-23)Copyright by ASTM Intl(all rights reserved);Mon Nov 23 09:52:50 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 Opening Remarks-m R.GRAY 3 INTERNAL HYDROGEN EMBRITTLEMENT(IHE)Testing for Relative Susceptibility Mechanical Testing Methods-T.P.GROENEVELD AND A.R.ELSEA 11 Electrochemical Teehniques-D.L.DULL AND LOUIS RAYMOND 20 Disk Pressure Wechnique-J.-P.FIDELLE R.BROUDEUR C.PIRROVANI AND C,ROUX 34 Testing for Hydrogen Pickup During Processing Mechanical Delay-Time Test Methods Notched C-Ring Test-E.J.JANKOWSKY 51 Stressed O-Ring Testw.H.HYTER Notched Bar-Bending Test-R.C.MOVlCH 64 Notched Test Strips-w.c.JONES 74 Hydrogen Detection Test Methods Hydrogen Detection Gages.c.LAWRENC,JR.83 An Ultrasensitive Hydrogen Detector-K.B.DAS 106 Neodymium Detection System-s.M.TOY 124 HYDROGEN ENVIRONMENT EMBRITTLEMENT(HEE)Testing for Hydrogen Environment Embrittlement:Experimental Vario ables-H.R.omv 133 Testing for Hydrogen Environment Embrittlement:Primary and Secondary Influences-H.G.NELSON 152 Testing to Determine the Effect of High-Pressure Hydrogen Environments on the Mechanical Properties of Metals-w.T.CHANDLER ANn R.J.WALTER 170 Various Mechanical Tests Used to Determine the Susceptibility of Metals to High-Pressure Hydrogen-j.A.HARRIS,JR.,AND.C.VANWANDERHAM 198 Copyright by ASTM Intl(all rights reserved);Mon Nov 23 09:52:50 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Disk Pressure Testing of Hydrogen Environment Embrittlement-J.-P.FIDELL:E R.BERNARDI R.BROUDEUR C.ROUX AND M.RAPIN 221 Effects of Irradiation and Oxygen on Hydrogen Environment Embrittlelnent of Selected AIoys-R.L.KESTERSON 254 CLOSING COMMENTARIES IHE-HEE:Are They the Same?-J.-P.FIDELLE IHE-HEE:Are They the Same?-H.G.NELSON 267 273 Copyright by ASTM Intl(all rights reserved);Mon Nov 23 09:52:50 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Introduction STP543-EB/Jan.1974 This symposium attempts to update our knowledge of hydrogen em-brittlement by presenting new test methods in comparison to those which have been in use for years.The old test methods have been used to eval-uate the classic sources of internal hydrogen embrittlement(IHE),such as pickling and plating.New test methods have been devised to evaluate materials susceptibility to high-pressure gaseous hydrogen environments(HEE),such as found in storage tanks,turbine engines,and power units.The purpose of the first part of this book dealing with IHE is to present a wide range of methods for measuring,detecting,and testing for the phenomena of hydrogen attack.This portion of the book illustrates the lack of a standardized approach resulting from various philosophies and personal preferences as to test methods.This initial effort should point the way for development of long-needed ASTM methods on the subject of IHE.The second part of this symposium deals with HEE and also clearly shows the need for test methods to produce