【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。更多还原

【Abstract】 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.更多还原