Binary Alloy Phase Diagrams Volume 1 Editor-in-Chief Thaddeus B. Massalski Editors Joanne L. Murray Lawrence H. Bennett Hugh Baker Associate editor Linda Kacprzak Publisher William W. Scott, Jr. Assistant editors Benjamin P. Burton Terri Weintraub Judith Bhansali Graphics Editors Chery! E. Sirofchuck James S. Sims AS American Society for Metals Metals Park, Ohio 44073
Ka01+1534.424L3-s92CCopyright @1986byAMERICANSOCIETYFOR'METALSICTHTYTyFirst printing, Octdber 1986VSecond printing,AugMarep87AAHSPePdInB. NeNo part of this book may be reproduced, stored in a retrieval system, or tranamitted, in any form or by any means, electronic, mechanical, photocopying,recording,orotherwise,withoutthewrittenpermissionof thecopyrightowner.Great care was taken in the compilation and production of this volume, but it should be made clear that no warranties, express or implied, are givenin connection with the accuracy or completeness of this publication, and no responsibility can be taken for any claims that may ariseComments, criticisms,and suggestions are invited, and should be forwarded to American Societyfor Metals,Metals Park,Ohio 44073.TheNational Standard Reference Data System was established in 1963 for the purpose of promoting the critical evaluation and dissemination of numericaldata of the physical, chemical, and materials sciences.The NSRDS is coordinated by the Ofice of Standard Reference Data of the National Bureau ofStandards, but involves the efforts of many groups in universities, govermiment laboratories,and private industry.The primary aim of theNSRDS is toprovide compilations of critically evaluated physical and chemical property data needed by the scientific and engineering community. Activities carriedoutunder theNSRDSemphasize the evaluation of published data by scientistswho are experts in theresearch areas involved.The output of the International Data Program for Alloy Phase Diagrams, including the"Program" phase diagram evaluations contained in this compi-lation, has been reviewed by the Office of Standard Reference Data and accepted as a product of the Nationai Standard Reference Data System.DavidR.Lide,Jr.,DirectorStandard Reference DataNational Bureau of StandardsLibrary of Congress Cataloging-in-Publication DataBinary alloy phase diagrams.Bibliography: p.Includes indexes.I. Massalski, T.B1.Alloys.2.Phasediagrams.II.Murray, Joanne L.I. Bennett, L. H. (LawrenceHerman),1930IV. Baker, HughTN690.B528198686-17350669°.94ISBN 0-87170-261-4 (set)ISBN0-87170-262-2(v.1)SAN: 204-7586PRINTEDINTHEUNITEDSTATESOFAMERICA
NATIONALPROGRAMSINVOLVEDINBINARYALLOYEVALUATIONSASM/NBS Data Program for Alloy Phase DiagramsThe Indian Institute of Metals Committee on ResearchProgrammeforAlloyPhaseDiagramsCanadianPhaseDiagramResearchAssociationASM/NBSDATAPROGRAMSTAFFAmerican Society for MetalsManaging Director:Edward L.Langer*, Allan Ray PutnamTechnical Dircctor:William W. Scott, Jr.*, Allen G. GrayProgram Manager:Hugh BakerProduction Supervisor:Linda KacprzakProduction Coordinator:Suzanne Walker*,Carolee LiptonNational Bureau of StandardsDirector, Institute for Materials Science and Engineering:Lyle H. Schwartz*,Robert Mehrabian, John B.WachtmanChief,MetallurgyDivision:E.NevillePugh*,LouisR.Testardi,Robert Mehrabian,A. William RuffChief, Mathematical Analysis Division, Center for Applied Mathematics:Frederick C.Johnson*NBS Coordinator, Alloy Phase Diagram Program:James G.Early*,J. Beverley Clark* (Visiting Scientist), Gilbert M. Ugiansky,Kirit J. Bhansali, John R. CuthillEditor,Bulletin ofAlloyPhaseDiagrams:JoanneL.Murray*,Lawrence H. BennettAssociate Editors, Bulletin of Alloy Phase Diagrams:Benjamin P.Burton*,Daniel J. Kahan, Michael E. ReedEditorial Assistant:Rosetta V.DrewComputer Graphics and Database Development:DavidF.Redmiles,James S.Sims**,CarolineQualey**,Roseann Hayes,Donald J.Orser*At time of publication**ASM Research Associate at NBSEditorial AdvisoryCommitteeProfessor T.B. Massalski,Dr.J.D.LivingstonChairmanGeneral Electric Co., USACarnegie-Mellon University, USAProfessor R. MehrabianUniversity of California-Santa Barbara,Mr.H.Baker,USASecretaryDr. J.L, MurrayAmerican Society for Metals, USANational Bureau of Standards, USADr. K.J. BhansaliProfessorW.B.PearsonCabot Corporation,USAUniversity of Waterloo, CanadaDr. J.W.CahnDr.B.H.RosofNational Bureau of Standards,USAConsultant, Indianapolis,USAProfessor Y.A. ChangProfessor C.A. WertUniversity of Wisconsin-Madison, USAUniversity of Illinois, USA
Committee on Constitution of Binary AlloysProf.T.B. Massalski.Prof.L.BrewerDr.W.B,PearsonChairmanUniv.of California-Berkeley,USAUniversity of Waterloo, CanadaCarnegie-Mellon University, USADr. J.W.CahnProf. A.D. PeltonNational Bureau of Standards, USAUniversity of Montreal, CanadaMr.H. Baker,Dr. J.R. CuthillProf.J.H.PerepezkoSecretaryAmerican Society forMetals,USANational Bureau of Standards (Ret.), USAUniversity of Wisconsin-Madison, USAMr. A.PrinceDr. R.P. ElliottDr. I.N. AnsaraCleveland State University, USAGEC Research Laboratories, UKInst. Nat.Polytechnique, FranceProf. F.N. RhinesDr.K.A. Gschneidner, Jr.Dr.D.P. AntiaUniversity of Florida, USAIowa State University, USAIndustrial and ManagementProf. M. HillertDr. I.S. ServiConsultant, IndiaRoyal Institute of Technology, SwedenConsultant, USADr. L.H. BennettDr. J.L. MurrayDr. R.M. WaterstratNationalBureauofStandards,USANational Bureau of Standards, USANational Bureau of Standards, USADr.K.J.BhansaliProf. J.NuttingDr. J.H. WestbrookCabot Corporation, USALeeds University,UKKnowledge Systems,USACategory EditorsPlatinum-Group MetalsEditor-in-ChiefChromiumProf.T.B. MassalskiProf.J.P.NeumannDr.M.S.ChandrasekharaiahCarnegie-Mellon University,USAUniversity of Alabama, USABhabhaAtomicResearchCentre,IndiaCobaltUnaryRare-Earth MetalsProf.T.NishizawaProf. H.W. KingProf. K.A. Gschneidner, Jr.Tohoku University, JapanTechnical University of Nova Scotia,lowa State University, USACanadaCopperSilicon and GermaniumProf. D.E. LaughlinProf. C.B. AlcockProf. G.J.AbbaschianCarnegie-Mellon University, PA, USAUniversity of Toronto,CanadaUniversity of Florida, USAGallium, Indium, and ThalliumActinide MetalsSilverDr. IN. AnsaraDr.D.E.PetersonProf.M.R.BarenInst.Nat.Polytechnique, FranceLos Alamos National Laboratory, NMTemple University,PA, USAGoldUSAProf.W.T.ThompsonProf. T.B. MassalskiAlkali MetalsRoyal Military College, CanadaCarnegie-MellonUniversity,PA,USAProf. A.D.Pelton andSulfur, II-VI, III-VHydrogenProf.C.BaleProf.Y.A. ChangProf. G.C.Weatherly andUniversity of Montreal, CanadaProf.F.D.ManchesterUniversity of Wisconsin-Madison, USAAlkaline-Earth MetalsUniversity of Toronto, CanadaTantalumProf. C.B. Alcock andIronDr. R. KrishnanProf.V.P.ItkinDr.I..J.SwartzendruberBhabhaAtomicResearchCentre.IndiaUniversity of Toronto, CanadaNational Bureau of Standards, USATitaniumAluminumMagnesiumDr. J.L. MurrayDr. J.L. Murray andProf. J.B. ClarkNational Bureau of Standards, USADr. A.J. McAlisterUniversity of Missouri-Rolla, USANational Bureau of Standards, USATungstenMolybdenumDr.P.Rama RaoBerylliumProf.L.BrewerDefence Metallurgical Laboratory ofDr.L. TannerUniv.of California-Berkeley,USAIndiaLawrence Livermore NationalNickelLaboratory,CA, USAVanadiumProf.P.NashProf. J.F. SmithDr.H. OkamotoIllinois Institute of Technology, USAlowa State University,USALawrence Berkeley NationalNiobiumLaboratory, CA, USAZinc and CadmiumDr. E.-Th. HenigMax-Planck-Institut, Stuttgart, FR GerBoronDr.J.Dutkiewicz andDr.Z.MoserProf. K.E. SpearProf. J.F. SmithPolish Academy of SciencesPennsylvania State Univ.,USAlowa StateUniversity,USAZirconiumNitrogen and OxygenCarbonDr. H.A. WriedtDr.J.P.AbriataDr. H. HolleckArgentineAtomicEnergyCommissionNuclear Research Center, FR GerConsultant, USAiv
ASMResourcesCommitteeWilliam D. Manly,Dr. Jere H. BrophyDr. Richard K. PitlerTRW, Ine.Allegheny Ludlum Steel Corp.ChairmanCabot Corporation (Ret.)Kenneth J.BrondykePaul R. RoedelAluminumCompanyof AmericaCarpenter Technology CorporationDr. Raymond DeckerDr. E. Daniel AlbrechtDr. Morris A. SteinbergMichigan Technological UniversityBuehler LimitedLockheed Corporation (Ret.)Sponsors of theASMRestricted Principal FundPrincipal AssociatesFord Motor CompanyThe Aluminum Association, Inc.General Electric CompanyAmerican Iron and Steel Institute?General Motors CorporationOH.H. Harris Foundation.Battelle Memorial Institute?Cabot Corporation Foundation, Inc.oInterlake,IncCarpenter Technology CorporationLindberg CorporationCDefense Advanced Research Projects Agency (DARPA)Lithium Corporation of AmericaSHowmet Turbine Components Corporation9Lockheed CorporationIBM CorporationNational Forge FoundationInco Alloy Products CompanyPerkin-Elmer CorporationInco LimitedReading Alloys, Inc.9NASA--Lewis Research CenterRMI CompanyTeledyne, Inc.Special Metals CorporationOAssociatesOStandard Oil Company (Indiana)ASMMembers&ChaptersTIMET-Buehler LimitedTRW, Inc.GTE CorporationWyman-Gordon CompanyRaRockwell International CorporationContributorsAffiliates.Chase Brass and Copper Co.AlleghenyLudlum Steel Corporation.Detroit Chapter, ASMAllied CorporationInternational Metallographic Society:-American Welding and Manufacturing Co.9International Precious Metals Institute.Massachusetts MaterialsResearch,Inc./LehighTesting-ARCO Metals CompanyAT&T Bell Laboratories (EPRI)LaboratoriesaNorthrop Aircraft DivisionBrush Wellman Inc.?Mr. Adolph I. BuehlerPacker Engineering Associates, Inc.a.Electric Power Research Institute-Pittsburgh Chapter, ASMRolled Alloys, Ine.Fansteel, Inc.Sponsors of the CanadianPhase DiagramResearch Association FundAlcan International Ltd.9Energy,Mines,&Resources9AMCA InternationalSINCO Alloy ProductsOAtlas Steels.Norton Steel Co.Canada ForgingsOntario HydroC.ASM Chapters and MembersQuebec Iron and Titanium Inc..CanadianElectrical Association.Russell Steel Inc.DOFASCO Inc.Other Contributors of Support to Category EditorsAeronautics ResearchandDevelopmentBoard (India)Ministry of Science and Technology (India)1.Bhabha Atomic Research Centre (India)Molycorp Inc. (USA)9Comision Nacional de Energia Atomica (Argentina)National Science Foundation (USA)9-Defence Metallurgical Research Laboratory (India)NBS Office of Standard Reference Data (USA)?Department of Energy (USA)Office of Naval Research (USA).Engelhard Industries Ltd. (UK)Polish/US Joint Board of Scientific CooperationThe General Electric Co., p.l.c. (UK)Reactive Metals &Alloys Corp. (USA)Ronson Metals Corp. (USA)InternationalCopperResearchAssociationInternational Gold Corp. (RSA)Santoku Metal Industry Co., Ltd. (Japan)-Johnson MattheyPublic Limited Company (UK).Science and Engincering Research Council (UK)Max-Planck-Institut fur Metallforschung (FRG)Steel Authority of India Ltd. (India)Ministry of Education (India)Tata Iron and Steel Co., Ltd. (India)Ministry of Mines (India)V