Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 560, Issue -, Pages 111-120Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2012.09.044
Keywords
Laser brazing; Dissimilar joining; Titanium alloy; Aluminum alloy
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Funding
- Grants-in-Aid for Scientific Research [21246111] Funding Source: KAKEN
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Laser brazing of Ti6Al4V and A6061-T6 alloys with 2 mm thickness was conducted by focusing laser beam on aluminum alloy side, and the effect of laser offset distance on microstructure and mechanical properties of the dissimilar butt joint was investigated. Laser offset has a great influence on the thickness of interfacial intermetallic compound (IMC) layer and the mechanical property of joint. The thickness of interfacial IMC layer is less than 500 nm, and the average tensile strength of the joint reaches 64% of aluminum base material strength, when suitable welding conditions are used. The interfacial IMC is TiAl3. The formation of interfacial IMC layer and its effect on mechanical property of the joint are discussed in the present study. (C) 2012 Elsevier B.V. All rights reserved.
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