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

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.