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Title Transition element modifications of Al-Li
Creator/Author Gayle, F.W. ; Levoy, N.F. ; Vandersande, J.B.
Publication Date1987 May 01
OSTI IdentifierOSTI ID: 6394628
Other Number(s)CODEN: JOMTA
Resource TypeJournal Article
Resource RelationJ. Met. ; Vol/Issue: 39
Research OrgReynolds Metals Co., Richmond, VA; E. I. Du Pont de Nemours and Co., Deepwater, NJ; MIT, Cambridge, MA
Subject360101 -- Metals & Alloys-- Preparation & Fabrication ;360103 -- Metals & Alloys-- Mechanical Properties; ALUMINIUM ALLOYS-- MECHANICAL PROPERTIES;LITHIUM ALLOYS-- MECHANICAL PROPERTIES;ZIRCONIUM ADDITIONS-- METALLURGICAL EFFECTS; AEROSPACE INDUSTRY;BINARY ALLOY SYSTEMS;DEFORMATION;PRECIPITATION HARDENING;TITANIUM ALLOYS
Related SubjectALLOY SYSTEMS;ALLOYS;HARDENING;INDUSTRY;ZIRCONIUM ALLOYS
Description/Abstract The development of aluminum-lithium metallurgy has led to alloys with unsurpassed combinations of density, specific strength, and specific modulus.^This paper describes recent advances in the modification of aluminum-lithium binary alloys through additions of the Group IV-A transition metals (titanium, zirconium, and hafnium).^These elements lead to a duplex precipitation hardening behavior through the formation of Al3Li and Al3(TM,Li) (TM = transition element) which act as strengthening precipitates.^The influence of the duplex structure on deformation mechanisms and the improvement of mechanical properties in these systems is illustrated by using results for the Al-Li-Zr system.^12 references.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 33-35
System Entry Date2001 May 13

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