摘要
采用添加助溶剂硼酐的铁基自熔性合金粉末和高频感应熔覆工艺在Q235钢上制备了铁基合金耐磨涂层。研究了硼酐添加量对感应熔覆涂层组织和性能的影响。结果表明,高频感应熔覆铁基涂层由热影响区、结合区和熔覆层组成,硼酐的加入使涂层与基体形成冶金结合;熔覆层的组织由放射状、枝晶状的固溶体和碳化物、硼化物等强化相组成;当硼酐添加量为1%时,涂层的组织最均匀,硬度最高,达1000 HV0.2。
A wear resistant iron-based alloy coating was prepared by using both self-fluxing iron-based alloy powder in which boric anhydride was added as a flux and high frequency induction cladding practice. The effect of the addition amount of boric anhydride was investigated on the microstructure and the property of induction clad coating. The results show that the high frequency induction clad iron-based alloy coating consists of heat affected zone, bonding area and cladding layer, and that the coating is metallurgically bonded to the substrate due to the addition of boric anhydride. Furthermore, the clad coating is composed of radial and dendritic solid solution and strengthening phases such as carbides and borides, and the clad coating with 1% B2 03 will offer the most uniform structure and the maximum hardness as high as 1000 HV0.2.
出处
《热处理》
CAS
2013年第1期37-40,共4页
Heat Treatment
关键词
高频感应熔覆
铁基自熔性合金粉末
硼酐
high frequency induction cladding
iron-based self-fluxing alloy powder
boric anhydride
