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Indexed by:期刊论文

Date of Publication:2018-12-01

Journal:SCRIPTA MATERIALIA

Included Journals:SCIE、Scopus

Volume:157

Page Number:10-14

ISSN No.:1359-6462

Key Words:Interface layer; (Al, Mg) (Ni, Mn, Fe) intermetallic based solid solution; Fe-Ni solid solution; Mg/steel joint; Lattice distortion

Abstract:An appropriate intermetallic compound interface layer that can achieve improved lattice matching for Mg and Fe immiscible welding system is difficult to select and prepare. Lattice matching strengthening by promoting the diffusion of alloy elements in the IMC could be employed when the IMC layer is obtained. Immiscible Mg and Fe were bonded by laser-gas tungsten arc welding with Ni interlayer. Nanoscale (Al, Mg) (Ni, Mn, Fe) intermetallic-based and alpha-(Fe, Ni) solid solutions were formed at the interface. The interplanar misfit for the (110)((Al, Mg) (Ni, Mn, Fe))parallel to(0002)(Mg) system was reduced by 42.2% with the diffusion of alloy elements in the Al-Ni interface layer. 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.