据《热加工工艺》1995年第4期戈大钫、张光钧等报道:本研究目的是用激光熔覆工艺,在柴油机的铁基粉末冶金飞轮上制备WC-Ni涂层,以取代进口的WC-Ni涂层飞轮。其技术要求是:(1)徐层没有气孔、裂纹等缺陷;(2)徐层尺寸满足设计要求(宽≥2.5mm,厚≥0.15mm);(3)硬度HRC>61;(4)涂层与基体有良好的冶金结合。研究中徐层用两种合金粉:5#粉(含35%WC,余者为Ni及2#粉(不含WC的自熔性Ni粉)。用 According to the “hot processing technology” in 1995 the fourth Ge Dao, Zhang Guangjun et al reported: The purpose of this study is the use of laser cladding process, the preparation of diesel iron-based powder metallurgy flywheel WC-Ni coating to replace imported WC -Ni coated flywheel. The technical requirements are: (1) the Xu layer has no defects such as pores and cracks; (2) the size of the Xu layer meets the design requirements (width≥2.5mm and thickness≥0.15mm); (3) hardness HRC> 61; Layer and the substrate has a good metallurgical combination. Xu layer with two kinds of alloy powder: 5 # powder (containing 35% WC, the remaining Ni and 2 # powder (self-fluxing Ni powder without WC) with