基于JMatPro计算的91钢热处理工艺研究
Research on Heat Treatment Process for 91 Steel Based on JMatPro Calculation
吴冰洁 1朱明冬 1王留兵 1杜华 1胡雪飞 1邓朝俊 1李六六1
作者信息
- 1. 中国核动力研究设计院核反应堆系统设计技术重点实验室,四川 成都 610213
- 折叠
摘要
采用JMatPro 7.0 软件计算了91 马氏体耐热钢的平衡和非平衡相图、淬透性、热处理工艺参数、TTA曲线和CCT曲线.研究了回火过程中钢中析出相的变化.结果表明:91 钢最合适的奥氏体化温度为1 000～1 050℃,回火温度不能高于 800℃;钢的淬透性极好,淬火冷却速率大于0.1℃/s即可淬透;回火过程中渗碳体尺寸的变化对钢的力学性能的影响较大.
Abstract
Equilibrium and non-equilibruim phase diagrams,hardenability,heat treatment process parameters,TTA and CCT curves for 91 martensitic heat-resistant steel were calculated via a JMatPro 7.0 software.The change in precipitated phases in the steel during the tempering was investigated.The results showed that(a)the most appropriate austenitizing temperatures were 1 000 to 1 050℃for the 91 steel,the tempering temperature must not be higher than 800℃;(b)91 steel had excellent hardenability,and was likely to be throughout hardened by quenching at rate of 0.1℃/s;and(c)the change of cementite in size during the tempering had a larger influence on mechanical properties of the steel.
关键词
91钢/JMatPro软件/淬透性/热处理工艺/计算Key words
91steel/JMatPro software/hardenability/heat treatment process/calculation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据