【摘要】 用电子探针及Ｘ射线衍射仪等研究了碳钢表面激光熔覆ＳｉＣＰ／Ｎｉ基合金复合涂层中ＳｉＣＰ的行为。结果表明，激光辐照使ＳｉＣＰ发生烧损及溶解现象，并首次观察到了熔覆层中形成的石墨相。硅化物及少量碳化物的析出使熔覆层的硬度明显提高。更多还原

【Abstract】 The research on transformation behavior of SiCP in laser surface cladded SiCP/Ni composite coatings on carbon steel has been conducted using EPMA and XRD methods. The results show that the SiCP particles were corroded and dissolved and that the spheric graphite formed. The dispersive precipitates of silicides and carbides make the hardness of laser cladded coatings increased.更多还原