扫描速度对激光熔覆WC-B_4C-Co涂层显微组织和性能的影响

Influence of scanning speeds on microstructure and properties of laser cladding WC-B_4C-Co

本文介绍用ＣＯ２激光器对２０＾＃钢表面涂敷ＷＣ－Ｂ４Ｃ－Ｃｏ进行的激光熔覆处理，对不同扫描速度下熔覆层的显微组织和性能进行了测试和分析。结果表明扫描速度对激光熔覆组织和各种性能影响特别显著。

This article presents our experiments of WC-B4C-Co cladding treatment on 20# steel surface by means of a high power CO2 laser. After treating with different scanning speeds, the microstructure and performances of the clad layer are observed, examined and analyzed. The experimental results show the obvious influence of the scanning speeds on the microstructure and properties of the laser cladding.