等离子喷涂涂层锻造工艺参数优化研究  

Research on Technical Parameters Optimization for Plasma Spray Coating

作　　者：陈威[1] 高一翔[1] 贺喆[1] 

机构地区：[1]装甲兵工程学院机械工程系,北京100072

出　　处：《热加工工艺》2012年第21期1-4,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(51075398);北京市自然科学基金资助项目(3122030)

摘　　要：为了提高热喷涂涂层的致密度,降低涂层残余应力,提出了涂层喷涂锻造工艺。以涂层结合强度和孔隙率为目标函数,以锻造温度、锻造次数和打击能量为变量,采用正交设计法进行了涂层锻造工艺参数优化设计,确定了因素的主次关系,得到了最佳锻造工艺参数,并进行了锻造工艺试验验证。分别在30°和90°冲蚀角情况下,对未锻造试件和锻造试件进行冲蚀对比试验研究。结果表明,经喷涂锻造工艺制备的涂层耐冲蚀性能明显优于未锻造试件。In order to improve densification of coating and reduce ks residual stress for plasma spray,forging technology of coating was proposed. Taking bonding strength and porosity as objective function,choosing forging tempera^res, forging times and blow energy as the variable of forging parameters, optimum design of forging technology parameters in the plasma spray coating was done by orthogonal design, so the relationship among primary and secondary factors was determined, and the optimization forging technology parameters were obtained. The verifiable experiment of forging technology was also done. Under the angle of erosion attack that is 30° and 90°, erosion contrast experiment with forging specimens and without forging specimens was done. The results prove that the resistance to erosion of the spray coatings prepared by forging technology is better than without forging specimens.

关 键 词：等离子喷涂 涂层锻造 致密化 冲蚀 

分 类 号：TG316.11[金属学及工艺—金属压力加工]