稀土对Q345钢渗硼层的影响及其催渗工艺研究  

Effect of Rare Earth On Boronizing Layer and Catalysis Process for Q345 Steel

作　　者：刘建建[1] 陈祝平[1] 杨光[1] 许跃东[1] 谭海波[1] 池阔[1] 

机构地区：[1]集美大学机械工程学院,厦门361021

出　　处：《表面技术》2012年第1期86-88,共3页Surface Technology

摘　　要：研究了在渗硼剂中添加氧化铈稀土对Q345钢渗硼层组织和厚度的影响,并通过正交试验法确定了催渗工艺。分析表明:适量地添加氧化铈稀土,可显著改善渗层组织,并能使渗层厚度增加10%以上。正交试验结果表明,最佳催渗工艺为:渗硼温度920℃,渗硼时间7h,氧化铈添加量为2%。Effects of added cerium oxide rare earth in the boronizing agent on the structure and thickness of bo ronizing layer for Q345 steel were studied, and the rare earth catalysis process by using the orthogonal testing method was determined. The analysis shows that adding appropriate amount of cerium oxide rare earth can significantly improve the horonizing layer structure and increase the thickness of more than 10%. Orthogonal testing results show that the best rare earth catalysis process can be gotten when the temperature is 920℃ and the time is 7h and the oxide rare is 2%.

关 键 词：稀土 渗硼层 催渗 

分 类 号：TG174.445[金属学及工艺—金属表面处理]