2024
DOI: 10.1177/13621718241253488
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Evolution of microstructure and enhanced mechanical properties of dissimilar Al and Mg joints with Cu interlayer fabricated by friction stir welding

Yongyong Liu,
Ziqian Wang,
Xiaoqing Jiang
et al.

Abstract: The formation of brittle intermetallic compounds (IMCs) poses a challenge to Al/Mg dissimilar alloys FSW. The results of the implemented systematic Cu interlayer experiments show that the diffusion forms of elements in the weld nugget zone (WNZ) and banded structure zone (BSZ) varied at different rotation speeds and Cu interlayer thicknesses. Adding Cu interlayer led to the evolution of conventional aluminium–magnesium IMCs towards aluminium–copper, magnesium–copper, and aluminium–copper–magnesium IMCs. The te… Show more

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