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Proceedings Paper

Semiquantitative study of amorphous structures in laser cladding of ZL111 aluminum alloy
Author(s): Xianqin Li; Zhaogu Cheng; Gongying Liang; Jin'an Xia; Guoliang Xu
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Paper 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.

Paper Details

Date Published: 7 February 2000
PDF: 8 pages
Proc. SPIE 3888, High-Power Lasers in Manufacturing, (7 February 2000); doi: 10.1117/12.377084
Show Author Affiliations
Xianqin Li, Shanghai Institute of Optics and Fine Mechanics (China)
Zhaogu Cheng, Shanghai Institute of Optics and Fine Mechanics (China)
Gongying Liang, Xi'an Jiaotong Univ. (China)
Jin'an Xia, Shanghai Institute of Optics and Fine Mechanics (China)
Guoliang Xu, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 3888:
High-Power Lasers in Manufacturing
Xiangli Chen; Tomoo Fujioka; Akira Matsunawa, Editor(s)

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