Recent developments in the weldability of lithium-containing aluminium alloys

The weldability of aluminum-lithium alloys is reviewed, with emphasis on alloys that are being commercialized: 2090, 8090 and Weldalite 049. These alloys are weldable, although hot-cracking susceptibility has been reported for 2090 and 8090 when welded with certain conventional filler alloys. Mechan...

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Bibliographic Details
Published inJournal of materials science Vol. 25; no. 7; pp. 3035 - 3047
Main Author PICKENS, J. R
Format Journal Article
LanguageEnglish
Published Heidelberg Springer 01.07.1990
Subjects
Applied sciences
Exact sciences and technology
Joining, thermal cutting: metallurgical aspects
Metals. Metallurgy
Welding
Mechanical property
Mechanical characteristic
Aluminium alloy
Porosity
Review
Weldability
Crack susceptibility
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Summary:The weldability of aluminum-lithium alloys is reviewed, with emphasis on alloys that are being commercialized: 2090, 8090 and Weldalite 049. These alloys are weldable, although hot-cracking susceptibility has been reported for 2090 and 8090 when welded with certain conventional filler alloys. Mechanical property data from weldments made by several techniques are emphasized. Weld-zone porosity problems have largely been controlled by proper weld-pretreatment and gas shielding. Interest in the weldability of aluminum-lithium alloys has taken on increased significance because of their potential to reduce the weight of space launch systems, whose fabrication most often involves welding. (Author)
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00587647