25Cr3MoA钢齿轮的三段法渗氮工艺  

Three stage nitriding process of 25Cr3MoA steel gear

作　　者：张海巍 马晓锋 马宁 沈琳 蒋东 Zhang Haiwei;Ma Xiaofeng;Ma Ning;Shen Lin;Jiang Dong(AECC Beijing Hangke Engine Control System Science&Technology Co.,Ltd.,Beijing 102200,China)

机构地区：[1]中国航发北京航科发动机控制系统科技有限公司,北京102200

出　　处：《金属热处理》2023年第6期118-121,共4页Heat Treatment of Metals

摘　　要：对25Cr3MoA钢齿轮进行了不同工艺的渗氮试验,结果表明,当渗氮层深度要求0.35~0.41 mm时,可通过三阶段渗氮工艺,解决齿轮、内花键长时间渗氮显微组织出现脉状、网状氮化物等问题。Nitriding test of 25Cr3MoA steel gear was carried out.The results show that when the depth of nitrided layer is 0.35-0.41 mm,the problem of the pulse-like and network-like nitride appearing in the microstructure of gears and internal splines during long-term nitriding can be solved by means of the three-stage nitriding process.

关 键 词：25Cr3MoA钢 齿轮 内花键 三段法渗氮 显微组织 

分 类 号：TG156.82[金属学及工艺—热处理]