Semiquantitative study of amorphous structures in laser cladding of ZL111 aluminum alloy

Xianqin Li; Zhaogu Cheng; Gongying Liang; Jin'an Xia; Guoliang Xu

doi:10.1117/12.377084

7 February 2000 Semiquantitative study of amorphous structures in laser cladding of ZL111 aluminum alloy

Xianqin Li, Zhaogu Cheng, Gongying Liang, Jin'an Xia, Guoliang Xu

Proceedings Volume 3888, High-Power Lasers in Manufacturing; (2000) https://doi.org/10.1117/12.377084
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

This paper deals with amorphous structures in the laser cladding. A kind of Ni-Cr-Al alloy was sprayed on the substrate, which was ZL111 alloy, to be the coating material. The coating was clad by 5 kW transverse flow CO₂ laser. The observation of SEM and TEM revealed that in the laser cladding there were amorphous structures which appeared two different morphologies: one was space curved flake-like, which existed in the white web-like structures; the other was fir leaf-like, which existed in the grain-like structures. Differential thermal analysis (DTA) was used to semi- quantitatively determine the content of the amorphous structures. A curve relation was obtained between the content of amorphous structures and the dimensionless laser cladding parameter C. The changes of the amorphous structures after annealing were also shown.

Citation Download Citation

Xianqin Li, Zhaogu Cheng, Gongying Liang, Jin'an Xia, and Guoliang Xu "Semiquantitative study of amorphous structures in laser cladding of ZL111 aluminum alloy", Proc. SPIE 3888, High-Power Lasers in Manufacturing, (7 February 2000); https://doi.org/10.1117/12.377084

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