_STP_1086-1990.pdf

STP 1086Corrosion in Natural WatersCalvin H.Baloun,editorLibrary of Congress Cataloging-in-PublicationDataCorrosion in natural waters/Calvin H.Baloun,editor.(STP;1086)Paprs presented at the Symposium on Corrosion in Natural Waters,held in Atlanta,Georgia,8 Nov.1988,sponsored by ASTM CommitteeGO 1on the Corrosion of Metals.ASTM publication code number(PCN)04-010860-27-T.p.verso.Includes bibliographical references and index.ISBN 0-8031-1383-8,i.,1.Corrosion and anti-corrosives-Cngresse;.I.Baloun,CalvinH.,1928-.II.American Society for Testing and Materials.Committee G-1 on Corrosion of Metals.III.Symposium on Corrosionin Natural Waters(1988:Atlanta,Ga.)IV.Series:ASTM specialtechnical publication:1086.TA462.C65541990620.1/1223-dc2090-665CIPCopyright by AMERICAN SOCIETY FORTESTING AND MATERIALS 1990NOTEThe Society is not responsible,as a body,for the statements and opinionsadvanced in this publication.Peer Review PolicyEach paper published in this volume was evaluated by three peer reviewers.The authorsaddressed all of the reviewers comments to the satisfaction of both the technical editor(s)and the ASTM Committee on Publications.The quality of the papers in this publicationreflects not only the obvious efforts of theauthors and the technical editor(s),but also the work of these peer reviewers.The ASTMCommitteeon Publications acknowledges with appreciation their dedication and contribu-tion of time and effort on behalf of ASTM.Printed in Ann Arbor,MIAugust 1990ForewordThe symposiumon Corrosion in Natural Waters was held in Atlanta,Georgia,8 Nov.1988.The symposium was sponsored by ASTM Committee GOI on the Corrosion of Metals.Calvin H.Baloun,Ohio University,presided as symposium chairman and is editor of thispublication.W.W.Kirk,LaQue Center for Corrosion Technology Inc.,presided as sym-posium cochairman.ContentsOverviewISeawaterCorrosivityAroundthe World:Resultsfrom ThreeYearsof Testing-w.w.KIRKANDS.J.PIKUL2CreviceCorrosionResistanceof StainlessSteelsin WatersContainingChlorideand SulfateIons-RoBERTM.KAIN37CorrosionFatigueTestingof Steelsas Applicableto OffshoreStructures-WILLIAM H.HARTT54CorrosionTestingin New York Reservoirsand InvestigationsofIn-ServiceCorrosion-GEORGEA.ANDERSEN ANDWILLIAM LEONG70EvaluatingCorrosionControlin WaterDistributionSystemsat U.S.ArmyBaSeS-PRAKASH M.TEMKAR,RICHARD J.SCHOUE,JR.,STEPHEN W.MALONEY,ANDCHESTER H.NEFF80Effect of Ground-WaterCompositionon the ElectrochemicalBehaviorof CarbonSteel:A StatisticalExperimentalStudY-NEILG.THOMPSON ANDJOHNA.BEAVERS10ILong-TermWeatheringof Organicand InorganicCoatingson Steel and onAluminum-c.v.LUNDBERG122OverviewThe origin of the symposium on Corrosion in Natural Waters occurred with the need fora vehicle to present the three-year interim results of the World-Wide Variability of Seawatersstudy.Over the past decade or more many papers have been presented concerning degradationof metallic materials in natural or nearly natural waters.Symposia have been sponsored bygroups involved in Off Shore Technology,Pipelines,Petroleumand Natural Gas,Water-works Associations,Nuclear Waste Storage,and other specialized interest areas.Unfortu-nately,some worthwhile research tends to slip through the cracks between these areas andnot be presented.This symposium has offered a receptacle for a varied collection of research presentationsin a timely fashion and should thus be of value to the corrosion community.Well deserved thanks go to W.W.Kirk as cochairman of this symposium and one of thepresenters,to the other authors and presenters,and to the reviewers who devoted much timeand effort to these thankless tasks.Calvin H.BalounStocker Center 180,Chemical Engineering,Ohio University,Athens,OH 45701;symposium chairman and editor.REFERENCE:Kirk,W.W.and Pikul,S.J.,Seawater Corrosivity Around the World:Resultsfrom Three Years of Testing,Corrosion in Natural Waters,ASTM STP 1086,C.H.Baloun,Ed.,American Society for Testing and Materials,Philadelphia,1990,pp.2-36.ABSTRACT:A world-wide test program was undertaken by Task Group G 1.09.02.03 to assessthe relative corrosivity of seawater at 14test sites.Aluminum alloy A95086,copper-nickel alloyC70600,and carbon steel alloy KOl50lspecimens were prepared at one location,shipped tothe various sites,and returned to the original site for final evaluations.Results obtained throughthree years of testing indicate that average corrosion behavior was generally within limits ofpreviously published results.Individual site characteristics have been identified,however,thatcan have a profoundeffect on test results.Even when the ASTM standard test method wasprescribed,variations affecting corrosion results became evident.In reality there is no naturalseawater environment,as identified to date,in which to test materials.The final fiveyear resultsare yet to be collected,but the cooperation of all program participants has contributedmuchtoward accomplishmentof the objectives.Still,more frequent and broader monitoring of sea-water variables at the