真空渗碳工艺分析与优化  

Analysis and Optimization of Vacuum Carburizing Process

作　　者：廖庚峰 胡立嵩 吴宁 万里鹏 熊路兰 李彩虹 漆诚 LIAO Geng-feng;HU Li-song;WU Ning;WAN Li-peng;XIONG Lu-lan;LI Cai-hong;QI Cheng(Jiangxi Hongdu Aviation Industry Group Co.,Ltd.,Nanchang Jiangxi 330095,China)

机构地区：[1]江西洪都航空工业集团有限责任公司,江西南昌330095

出　　处：《热处理技术与装备》2022年第6期16-21,共6页Heat Treatment Technology and Equipment

摘　　要：采用Harris关系式和VacCard真空渗碳模拟软件计算和分析真空渗碳工艺,通过金相法和硬度法测量渗碳层深度,并估算表面碳浓度。结果表明:该方法模拟计算的总渗碳深度与试验测试值接近,而有效硬化层深度和表面碳浓度略有差别。低碳钢表面碳浓度为0.90%~1.0%,合金钢表面碳浓度为0.85%~0.90%,提高表面碳浓度有利于增强钢表面硬度。The vacuum carburizing process was calculated and analyzed by the Harris relation and VacCard vacuum carburizing simulation software. The depth of carburized layer was measured by metallographic method and hardness method, and the surface carbon concentration was estimated by metallographic method. The results showed that the total carburizing depth calculated by this method was close to the test value, while the effective hardened layer depth and surface carbon concentration was slightly different. The surface carbon concentration of low carbon steel was 0.90% to 1.0%, and the surface carbon concentration of low carbon alloy steel was 0.85% to 0.90%. The increase of surface carbon concentration was beneficial to improve the surface hardness of steel.

关 键 词：真空渗碳 渗碳层深度 渗碳层组织 表面碳浓度 硬度 

分 类 号：TG156.95[金属学及工艺—热处理]