Characterization of 6061-T6 aluminum alloy to AISI 1018 steel interfaces during joining and thermo-mechanical conditioning

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• 作者：Emel Taban ; Jerry E. Gould ; John C. Lippold
• 关键词：Welding ; Steels ; Aluminum alloys ; Intermetallic compounds ; Electron microscopy
• 刊名：Materials Science and Engineering: A
• 出版年：2010
• 出版时间：25 March 2010
• 年：2010
• 卷：527
• 期：7-8
• 页码：1704-1708
• 全文大小：729 K

文摘

Friction welds between 6061-T6 aluminum alloy and AISI 1018 steel have been examined in the as process condition and following thermo-mechanical treatment. Joints were characterized by microhardness mapping, focused ion beam with ultra high resolution scanning electron microscopy and transmission electron microscopy with energy dispersive spectrum. Intermetallic layer thicknesses at the interfaces ranged from 250 to 400 nm. These intermetallics appear related to the FeAl and Fe₂Al₅ phases for as-welded condition and FeAl, Fe₂Al₅, FeAl₃ and FeAl₆ phases following thermo-mechanical condition.