摘要
通过扫描电于显微镜观察、Ｘ射线能谱分析、显微硬度测定和干摩擦磨损试验，本文研究了Ｍｉ＋４Ｂ微晶粉末、Ｇ３０２铁基喷涂粉末和Ｍ＿８０Ｓ＿２０铁基非晶自熔合金粉末喷涂层的组织和耐磨性．结果表明，Ｍ＿８０Ｓ＿２０ｓ喷涂层内仍保留一定数量的高硬度的合金非晶质点，粉末颗粒塑性变形大，层状结构明显，结合充分；Ｍ＿２十４Ｂ喷涂层仍保持粉末高速钢的组织特性，粉末颗粒塑性变形最小，层内有较多的孔洞和空隙；Ｇ３０２喷层的结合情况介于两者之间。三种合金喷涂层均具有比ＧＣｒ１５钢高得多的耐磨性。
This poper deals with the microstructure and wear resistance of the flame spary coatings of M_2+4B micro-crystal alloy powder,G302 self-melting alloy powder and M_80S_20 self-melting noncrystal alloy powder.The results show that M2+4B coating maintains the particle shape and microstructure of HSS powder,M_80S_20 coating possess some hard noncrystal micro-particles.The wear resistance of there three kinds of coating is much higher than that of GCr15 steel.
出处
《洛阳工学院学报》
1995年第3期6-10,共5页
Journal of Luoyang Institute of Technology
基金
清华大学摩擦学国家重点实验室摩擦学基金
