磁场辅助激光熔覆铝基金属玻璃覆层

doi:10.7527/S1000-6893.2018.22134

Abstract

Abstract: Al-Ni-Y-Co-La five-component metallic glass cladding layer was prepared on the surface of 5083 aluminum alloy by magnetic field assisted laser cladding technology to improve the surface properties of the aluminum alloy. The microstructure and properties of the cladding layer are analised. Some of the effective experimental results show that the cladding layer is mainly composed of amorphous phase, α-Al phase and Al4NiY intermetallic compound phase. The stirring of the rotating magnetic field increases the amorphous phase content of the cladding layer from 10.2% to 30.7% and could inhibit the recrystallization grain growth effectively in the process of multi-lap and multi-layer deposition. The residual stress is reduced and the grain structure is refined. The microhardness and tenacity are enhanced, the average microhardness increased from 278 HV_0.1 to 335 HV_0.1 with less fluctuation. The average tensile strength is 303 MPa, 110.2% of the matrix tensile specimen and the average elongation is 6.79%, 33.1% of the matrix.

Key words: laser cladding, magnetic field, aluminum-based metallic glass, residual stress, microhardness, tensile strength

CLC Number:

V216.8
TG661

WANG Xiaoming, ZHU Sheng, YANG Baijun, ZHANG Yao, XU Anyang. Aluminum-based metallic glass coatings prepared with magnetic field assisted laser cladding[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(11): 422134-422142.

References

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Aluminum-based metallic glass coatings prepared with magnetic field assisted laser cladding

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