To read this content please select one of the options below:

Improving the high-temperature oxidation resistance of H13 steel by laser cladding with a WC/Co-Cr alloy coating

Xiaodong Zhang (School of Materials and Energy, Guangdong University of Technology, Guangzhou, China)
Xiaohua Jie (School of Materials and Energy, Guangdong University of Technology, Guangzhou, China)
Liuyan Zhang (School of Materials and Energy, Guangdong University of Technology, Guangzhou, China)
Song Luo (School of Materials and Energy, Guangdong University of Technology, Guangzhou, China)
Qiongbin Zheng (School of Materials and Energy, Guangdong University of Technology, Guangzhou, China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 3 May 2016

366

Abstract

Purpose

This paper aims to discuss that a WC/Co-Cr alloy coating was applied to the surface of H13 steel by laser cladding.

Design/methodology/approach

The oxidation behavior of the WC/Co-Cr alloy coating at 600°C was investigated by comparing it with the performance of the steel substrate to better understand the thermal stability of H13 steel.

Findings

The results showed that the WC/Co-Cr alloy coating exhibited better high-temperature oxidation resistance and thermal stability than did uncoated H13 steel. The coated H13 steel had a lower mass gain rate and higher microhardness than did the substrate after different oxidation times.

Originality/value

The WC/Co-Cr alloy coating was composed of e-Co, CW3, Co6W6C, Cr23C6 and Cr7C3; this mixture offered good thermal stability and better high-temperature oxidation resistance.

Keywords

Acknowledgements

This work was financially supported by the China Postdoctoral Science Foundation (2014M562149) and the Natural Science Foundation of Guangdong Province China (2015A030310162).

Citation

Zhang, X., Jie, X., Zhang, L., Luo, S. and Zheng, Q. (2016), "Improving the high-temperature oxidation resistance of H13 steel by laser cladding with a WC/Co-Cr alloy coating", Anti-Corrosion Methods and Materials, Vol. 63 No. 3, pp. 171-176. https://doi.org/10.1108/ACMM-11-2015-1606

Publisher

:

Emerald Group Publishing Limited

Copyright © 2016, Emerald Group Publishing Limited

Related articles