期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 503, 期 1-2, 页码 163-166出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2007.12.057
关键词
Ultrafine-grained microstructure (UFG); Accumulative roll bonding (ARB); Friction stir welding (FSW)
Ultrafine-grained sheets of the commercial-purity aluminium AA1050 and the aluminium alloy AA6016 were processed by accumulative roll bonding. As-received, conventionally grained and ultrafine-grained aluminium sheets with an average grain size ranging from 20 mu m to 30 mu m and 200 nm, respectively, were successfully joined by friction stir welding, and the microstructure and the mechanical properties of the welded zone were investigated. Ultrafine-grained materials showed softening in the nugget, although the hardness remained comparable to the as-received, conventionally grained aluminium sheets. (c) 2008 Elsevier B.V. All rights reserved.
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