相同渗碳工艺下不同钢种渗碳层深度及硬度探讨  

Discussion on carburizing depth and hardness of different steels under carburizing process

作　　者：陈占杰 杨晓奇 刘松[2] Chen Zhanjie;Yang Xiaoqi;Liu Song(Anyang Iron&Steel Group Co.,Ltd.,Zhengzhou 450000,China;Anyang Iron&Steel Co.,Ltd.,Anyang 455000,China)

机构地区：[1]安阳钢铁集团有限公司,河南郑州450000 [2]安阳钢铁股份有限公司,河南安阳455000

出　　处：《金属制品》2023年第3期23-26,共4页Metal Products

摘　　要：对不同钢种在相同渗碳工艺处理并淬火低温回火后的金相组织、渗碳层、硬度的影响规律进行研究。结果表明:试验的不同钢种在920℃渗碳、820℃淬火和240℃低温回火处理后,表层金相组织相同,心部存在差异。线扫描表明越靠近表层其碳含量急剧上升。渗碳层深度在350~400μm,各钢种渗碳层深度无差异,表层维氏硬度相同,达到760 HV,心部硬度值存在差异。To study influence laws of microstructure,carburized layer and hardness of different steel grades after quenching and low-temperature tempering of the same carburizing treatment.Results show that different steel grades tested were carburized at 920℃,quenched at 820℃and tempered at low temperature 240℃,surface microstructure is the same,and there are differences in core.The carbon content increases sharply closer to surface.The depth of carburized layer is between 350~400μm.There is no difference in depth of carburized layer of each steel.Vickers hardness of surface layer is the same as 760 HV,and there are differences in core.

关 键 词：渗碳工艺 渗碳深度 维氏硬度 金相组织 

分 类 号：TG356[金属学及工艺—金属压力加工]