高铁齿轮用钢18CrNiMo7-6的端淬曲线与模拟计算  

End-quenching experimental curves and simulation calculation of 18CrNiMo7-6 steel for high-speed railway gears

作　　者：朱跃峰[1] 顾家琳[1] 周惠华[1] 王之香[2] 张锦文[2] Zhu Yuefeng;Gu Jialin;Zhou Huihua;Wang Zhixiang;Zhang Jinwen(School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;Shanxi Taigang Stainless Steel Co.,Ltd.,Taiyuan Shanxi 030003,China)

机构地区：[1]清华大学材料学院,北京100084 [2]山西太钢不锈钢股份有限公司,山西太原030003

出　　处：《金属热处理》2022年第12期237-243,共7页Heat Treatment of Metals

基　　金：山西省重点研发计划(201903D111008)。

摘　　要：采用3种端淬曲线预测模型计算两炉次高铁齿轮用钢18CrNiMo7-6的端淬曲线,对比端淬硬度检测结果,分析了不同模型的预测误差。结果表明,金满模型的预测结果与端淬试验检测结果误差较小,可以用做这类钢的端淬结果预测。根据端淬曲线预测与实测结果的对比分析,结合相关高铁齿轮用钢技术条件的硬度规范对高铁齿轮用钢18CrNiMo7-6的冶炼成分控制给出了建议。Three prediction models were used to calculate and predict the end-quenching curves of two batches of 18CrNiMo7-6 steel for high-speed railway gears,and then the prediction errors of different models were analyzed by comparing with the end-quenching test results.The results show that the Jin model obtains small error compared with the end-quenching test results,and can be used to predict the end-quenching curves of the tested steels.According to the comparative analysis of the predicted and the measured results of the end-quenching test,and combing with the hardness specification for technical conditions of the high-speed railway gear steels,the controlling method of the smelting composition of 18CrNiMo7-6 steel for high-speed railway gears is proposed.

关 键 词：高铁齿轮钢18CrNiMo7-6 端淬曲线 化学成分 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG156.3[金属学及工艺—金属材料]