Research on the Micro-Crack Density of a Chromium Coating/Steel Substrate with and without Laser Pre-Quenching Treatment

Abstract:

The initial micro-crack density of a chromium coating/steel substrate with and without laser pre-quenching treatment was investigated in this work. It was found the micro-crack density of Cr coating on the pre-quenched substrate surface was much lower than that of the Cr coating on the original substrate surface. Based on the results presented in this work and in the literature, the find presented in this work indicates the lower crack density of the chromium coating on the pre-quenched substrate may improve the mechanical properties of this material system, and it may be an important mechanism responsible for the prolonged lives of workpieces in practice.

• Periodical: Advanced Materials Research (Volumes 217-218)
• Pages: 591-594
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.217-218.591
• Online since: March 2011
• Authors: Ban Quan Yang, Guang Nan Chen, Xue Jun Chen
• Keywords: Cr Coating/Laser Pre-Quenched Steel Substrate System, Cr Coating/Original Steel Substrate System, Micro-Crack Density

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