钢件的甲酰胺高温气体碳氮共渗  

High Temperature Gas Carbonitriding of Steel Parts Applying Formamide

作　　者：孙斌[1] 张伟民[1] 章志英[1] 

机构地区：[1]上海交通大学材料科学与工程学院,上海200030

出　　处：《金属热处理》2002年第10期33-36,共4页Heat Treatment of Metals

基　　金：英国BOC集团资助

摘　　要：应用气体渗碳的计算机精确控制技术 ,对常用低碳钢 (AISI 872 0 )进行了高温气体碳氮共渗试验 ,对不同渗碳条件 (在不同时间加入不同比例的甲酰胺 )下低碳钢的渗层深度和硬度进行了测定和比较分析 ,得出渗氮介质比例。In this paper,a series of high-temperature gas carbonitriding tests has been taken with a low-carbon steel (AISI8720)by means of computer accurate controlling technology.The tests were under different carburizing conditions(diverse concentration of the nitriding medium formamide in different carbonitriding time).The depth and microhardness of the case layer under different conditions were tested and compared.It can be concluded that the depth and microhardness of the case layer increase with increasing of the introduced formamide.

关 键 词：钢件 高温气体碳氮共渗 气体渗碳 催渗 甲酰胺 渗碳层深度 渗碳层硬度 

分 类 号：TG162[金属学及工艺—热处理] TG156.82[金属学及工艺—金属学]