氮甲醇渗碳气氛中稀土的催渗作用  

Accelerating Effect of Rare Earths in Nitrogen Methanol Carburizing Atmospheres

作　　者：常延武[1] 徐洲[1] 李志强[1] 李宇[1] 

机构地区：[1]上海交通大学教育部高温材料及高温测试开放实验室,上海200030

出　　处：《热加工工艺》2001年第5期27-28,30,共3页Hot Working Technology

摘　　要：研究了在氮甲醇渗碳气氛中加入稀土元素 ,在 86 0℃渗碳温度下 ,稀土元素对渗碳过程的影响。发现在该温度及不同渗碳时间 (从 0 .5 h到 4h)下 ,对不同钢 (15 Cr Ni3Mo、2 0 Cr Ni Mo和 2 0钢 )渗碳 。The accelerating effect of rare earths in nitrogen methanol carburizing atmospheres at 860℃ was studied.It was found that rare earths had accelerating effect on the carburizing for different time(from 0.5 to 4 hours)on different steels(15CrNi3Mo,20CrNiMo and 20 steel.)

关 键 词：渗碳 稀土 氮甲醇气氛 催渗 热处理 

分 类 号：TG156.81[金属学及工艺—热处理]