摘要
用金相法和有效硬化层深法测定 2 0 Cr钢渗碳后渗碳层深度 ,试验分析了与碳浓度梯度之间的关系。结果表明 :2 0 Cr钢渗碳后用金相法测量渗碳层深与用硬化层法测量有效硬化层深其差别很小 ,因此在热处理检验时可采用金相法测量。金相法测量的渗碳层深度自表面开始测至珠光体含量约占 50
A series of experiments of metallographic measurement of carburizing case, hardening layer measurement and carbon gratitude were done. The results show that the difference between the metallographic method and hardness method is small, so we can adopt the metallographic method during heat treatment inspection of 20Cr steel; and the depth of carburizing case can be calculated from the outside face to where the pearlite contents are 50% when using metallographic method.
出处
《实验室研究与探索》
CAS
2001年第1期48-49,52,共3页
Research and Exploration In Laboratory
关键词
渗碳层深度
碳浓度梯度
有效硬化层
金相法
depth of carburizing case
carbon gratitude
hardening layer
metallographic method
