朱冬梅,张少军,李超,沈洋

• 1:北京科技大学机械工程学院

摘要(Abstract)：

通过实验测定了TNM360耐磨钢在20~900℃范围内的比热容和热导率;测定了耐磨钢的等温转变曲线(TTT曲线)以及100~1000℃之间每隔100℃的真应力真应变曲线以及马氏体相变膨胀曲线,计算得出马氏体转变相关系数;针对10 mm厚耐磨钢板,设计3种淬火冷却工艺:第一与第二冷却工艺相比,钢板运行速度相同,冷却器开启组合不同;第一与第三冷却工艺相比,冷却器开启组合相同,而钢板运行速度不同。并利用Ansys和Matlab对冷却过程的温度场、组织场以及应力场进行模拟计算。结果表明:TNM360耐磨钢3种工艺终冷温度均在技术要求范围内,终冷后组织均为马氏体及少量残留奥氏体,但在冷却器全开,钢板运行速度为1.6 m/s,淬火后残余应力及应变最小,板形最好。

关键词(KeyWords)： 耐磨钢;三场耦合;淬火工艺;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51105029);; 中央高校基本科研业务费专项资金(FRF-TP-12-073A)

作者(Author): 朱冬梅,张少军,李超,沈洋

DOI: 10.13289/j.issn.1009-6264.2015.03.042

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