合金钢气体渗碳淬火过程的计算机模拟  

Computer Simulation on Gas Carburizing and Quenching Process of Alloy Steel

作　　者：朱琳[1] 申世坤 

机构地区：[1]西安铁路职业技术学院,陕西西安710014 [2]中船重工陕西柴油机重工有限公司,陕西兴平710049

出　　处：《铸造技术》2016年第11期2349-2352,共4页Foundry Technology

摘　　要：以合金钢齿轮18Cr Ni Mo7为设计原型,通过合金渗碳建模、渗碳淬火过程的计算机模拟得到了合金齿轮不同区域的渗碳变化规律,并采用有效硬化层法、金相法和化学剥层法得到了实际渗碳过程中的渗碳层深度与碳浓度分布特征。结果表明,随着距离合金齿轮表面距离的增加,碳含量逐渐降低;采用化学分析法测得的不同部位的碳含量分布与计算机模拟结果吻合。可以通过计算机模拟的方法预测渗碳工艺条件下最终热处理完成后有效硬化层的深度,这样就可以增加生产效率。Taking 18CrNiMo7 alloy steel gear as study subjects, the carburizing variation low of the alloy gear in different region was obtained through the alloy carburizing modeling and computer simulation of carburizing and quenching process. The distribution characteristics of carburized layer depth and carbon concentration was obtained by the effective hardening layer method, metallographic analysis and chemical stripping layer method. The results show that the carbon content decreases with the increase of distance from the surface of the alloy gear, and the carbon content of different parts with the chemical method is in good agreement with computer simulation results. The finished depth of effective hardening layer can be predicted by computer simulation to increase production efficiency.

关 键 词：合金钢 渗碳 计算机 试验验证 

分 类 号：TG161[金属学及工艺—热处理]