摘要
分析了双相热处理工艺对20MnSi钢组织和力学性能的影响,探讨了其强韧化机理。研究结果表明:20MnSi钢经双相热处理后可得到马氏体与少量铁素体相间分布的细小均匀的双相组织,其屈服强度大幅度提高,同时塑性指标也明显改善,这是固溶强化、位错强化和细晶强化综合作用的结果。
The influence of dual phase heat treatment on microstructure and mechanical properties of 20MnSi was studied, and the strengthening mechanism was also discussed. The results show that fine dual phase microstructure with martensite and a few ferrite can be obtained by proper dual phase heat treatment. The strength and elongation of 20MnSi after dual phase heat treatment are improved obviously, which is the result of combination of solution strengthening, dislocation strengthening and grain refining strengthening.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2005年第4期65-67,共3页
Journal of Iron and Steel Research
关键词
双相钢
热处理
力学性能
强化机理
20MnSi
<Keyword>dual phase steel
heat treatment
mechanical property
strengthening mechanism
20MnSi
