The wear-resisting and heat-resisting deposit welding rod with Ni-Co-Cr-B-C as the basic alloy system was prepared by mechanical ball milling mixture, sintering after extrusion shaping method.
选择Ni-Co-Cr-B-C为基本合金体系,经过机械球磨混合、挤压成形、真空烧结方法制备了耐磨耐热堆焊焊条,采用钨极氩弧焊在高温铸造合金基材上堆焊耐磨耐热堆焊层,对堆焊层的组成、结构进行了分析,XRD分析和热力学计算表明焊层组成为Co、Ni为主的面心立方合金、M23(C,B)6或M23C6,还有少量的C7M3和M3B2。