感应加热三元硼化物陶瓷涂层的组织及界面结构
Microstructure and Interfacial Structure of Mo2FeB2 Cermet Coating by Induction Heating
徐义胜, 周小平
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作者单位：(湖北工业大学 机械工程学院, 湖北 武汉 430068)
中文关键字：Mo2FeB2三元硼化物； 感应加热； 涂层； 微观组织
英文关键字：Mo2FeB2 ternary boride; induction heating; coating; microstructure
中文摘要：采用反应喷涂(RFS)技术在钢基体表面制备出具有Ni60粘结层的三元硼化物金属陶瓷涂层。使用XRD、SEM和EDS等研究了感应加热工艺以及Ni60粘结层对涂层的相组成、显微组织、界面结构的影响规律。结果表明，在本实验条件下随感应加热时间的延长，涂层组织渐趋致密，而涂层界面由于存在明显的咬合趋势，从而有益于界面结合强度的提高。
英文摘要：Mo2FeB2 ternary boride cermet coating with Ni60 bond coating was prepared on the steel substrate by reactive flame spraying. The effects of induction heating and Ni60 bond coating on the phase composition, microstructure and interfacial structure of the coating were investigated by XRD, SEM and EDS. The results show that the microstructure becomes more compact with the increase of heating time, and the interfacial combination becomes strong, which is beneficial to the improvement of the interfacial bonding strength in the experimental condition.