稀土硼铬共渗工艺及渗层性能的研究  

Study on RE-B-Cr Coating Processes and It's Properties

作　　者：尹付成[1] 洪振声[1] 金义华[1] 

机构地区：[1]湘潭大学机械系

出　　处：《热加工工艺》1996年第2期17-18,共2页Hot Working Technology

摘　　要：研究了４５钢、Ｔ１０钢固体粉末法稀土硼铬共渗工艺及渗层的耐磨性、耐蚀性和高温抗氧化性能。发现ＲＥ－Ｂ－Ｃｒ共渗速度低于ＲＥ－Ｂ共渗，但稀土对硼铬共渗有明显的催渗作用，其最佳浓度为３％；ＲＥ－Ｂ－Ｃｒ共渗层具有较高的表面硬度和较小的硬度梯度，和渗硼层相比，耐磨性和耐蚀性分别提高３倍，抗７００℃氧化性提高１０倍左右。The processes and properties of RE-B-Cr coating of 45 and T10 steel with solid power have been researched.The results show that the coating rate of RE-B-Cr is slower than that of RE-B,but Rare earth is a kind of catalyst in boron-chromizing and the best concentration is 3%wt;The coating has higher surface hardness and lower hardness gradient;The wear and corrision-resistance are higher than that of boronning by 3 times,the oxidation- resistance at 700℃ by 10 times or so.

关 键 词：稀土 硼铬共渗 磨损 腐蚀 氧化 渗层 

分 类 号：TG156.8[金属学及工艺—热处理]