Laser deposited Ni-based gradient coating with high wear-resistance on the surface of copper

DOI

10.2991/icmmbe-16.2016.49How to use a DOI?

Keywords

laser deposition; gradient coating; metallurgical bond; Heat shock performance.

Abstract

A Ni-based alloy gradient coating with four layers of the different composition was produced on surface of Cu alloy substrate using YAG laser. The microstructure, anti-wear and anti-heat shock properties of the gradient coating were studied by means of analysis techniques. The results show that there are no cracks or pore on the surface and inside structure of the gradient coating. The main reinforcing phase of the Ni-based alloy gradient coating is Cr-Ni-Fe-C and Ni4(W, Mo). The micro-hardness of the gradient coating increase gradually with the direction from substrate to the surface, and micro-hardness of outermost layer reaches 834HV, which is 8.3 times than that of Cu-substrate. After eight heat shock tests at 750 , no crack was observed in the gradient coating and the gradient coating was still metallurgical bond with the substrate. This new Ni-based gradient coating has both high wear- resistance and anti-heat shock performance.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Suiyuan Chen
AU  - Guili Yin
AU  - Ruixue Wang
AU  - Jing Liang
AU  - Changsheng Liu
PY  - 2016/09
DA  - 2016/09
TI  - Laser deposited Ni-based gradient coating with high wear-resistance on the surface of copper
BT  - Proceedings of the6th International Conference on Mechatronics, Materials, Biotechnology and Environment (ICMMBE 2016)
PB  - Atlantis Press
SP  - 249
EP  - 254
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmbe-16.2016.49
DO  - 10.2991/icmmbe-16.2016.49
ID  - Chen2016/09
ER  -