镍-铬基及其复合涂层的冲蚀磨损性能研究  

Research on Erosion Wear Resistance of Ni-Cr Based and Their Composite Coating

作　　者：朱二雷[1] 汪刘应[1] 刘顾[1] 

机构地区：[1]第二炮兵工程学院,陕西西安710025

出　　处：《热加工工艺》2011年第16期131-133,136,共4页Hot Working Technology

摘　　要：采用超音速电弧喷涂技术和微弧等离子喷涂技术,在45钢基体上分别制备了Ni-Cr基复合涂层和Ni-Cr/ZrO2梯度涂层。研究了涂层的冲蚀磨损性能,并对涂层的冲蚀磨损形貌及冲蚀磨损机理进行了分析。结果表明,随着冲蚀角度的增大,Ni-Cr基复合涂层与Ni-Cr/ZrO2梯度涂层的冲蚀率都呈现先增加后减小的趋势,并且大约在60°冲蚀角时,冲蚀率达到最大值。Ni-Cr composite coating and Ni-Cr/ZrO2 gradient coating were respectively deposited on surface of 45 steel by supersonic arc spraying and micro-plasma spraying. The erosion wear resistance of the coating was studied; the erosion wear micrograph and mechanism were analyzed. The results show that the erosion rate of Ni-Cr composite coating and Ni-Cr/ZrO2 gradient coating increases firstly, then decrease with the increase of erosion angle, which approximately to the maximum at 60° erosion angle.

关 键 词：镍-铬涂层 梯度涂层 冲蚀磨损 冲蚀率 

分 类 号：TG174.442[金属学及工艺—金属表面处理]