Microstructure and mechanical behaviour of CMT-welded Mg/Al dissimilar joint using Inconel 625 as filler metal
Source abstract
Abstract
Mg/Al dissimilar lap joint was produced by modified cold metal transfer process using Ni-based alloy wire Inconel 625 as filler metal. The characteristics of microstructure and mechanical behaviour of the joint were investigated. Microstructural analysis shows that the weld interface near Mg substrate consists of six types of areas: Mg2Al3-based area, Mg17Al12-based area, Al solid solution-based area, fusion zone-based area, Mg + Mg17Al12 eutectic area, and mixed area. With the characteristic of quasi-cleavage fracture, the tensile-shear load of the lap joint reached to 1.28 kN. The failure occurred primarily at the Mg2Al3-based area within the weld interface near Mg substrate. However, the harmful effect of the Mg2Al3 intermetallics on the strength of welded joint is limited.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Welding Techniques Analysis · Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Hebei Provincial Key Laboratory of Traffic Engineering materials, School of Material Science and Engineering, Shijiazhuang TieDao University, Shijiazhuang, People’s Republic of China
Tianjin Key Laboratory of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin, People’s Republic of China
Army Academy of Armored Forces, Beijing, People’s Republic of China
Funding
National Natural Science Foundation of China · Science and Technology Foundation of Higher Education Institutions of Hebei Province
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