Development of Ti microalloyed high strength steel plate by controlling thermo-mechanical control process schedule
Development of Ti microalloyed high strength steel plate by controlling thermo-mechanical control process schedule
复制标题
通过控制热机控制工艺流程开发钛微合金化高强度钢板
DOI：
10.1088/2053-1591/aa9bba
复制
发表时间：
2017
影响因子：
2.3
通讯作者：
Song
中科院分区：
文献类型：
--
作者：
Ji;X. Huo;Liejun Li;Zhengwu Peng;Song
通过热模拟实验确定了TMCP工艺参数（未再结晶温度Tnr和最佳等温温度），并通过控制TMCP工艺制度开发了一种新型Ti微合金化高强度钢板。研究了TMCP工艺对Ti微合金化高强度钢板的组织特征、析出行为和力学性能的影响。结果表明，采用γ再结晶区和γ未再结晶区轧制的双级轧制工艺有利于Ti微合金化钢晶粒细化，提高力学性能。在600 °C等温处理过程中，大量细小的TiC（<10 nm）颗粒析出，产生了215 MPa的沉淀强化效应。
In this study, the TMCP parameters including non-recrystallization temperature (Tnr) and optimal isothermal temperature were determined by thermal simulation experiments, and a new Ti microalloyed high strength steel plate was developed by controlling thermo-mechanical control process (TMCP) schedule. The effects of TMCP process on microstructural features, precipitation behavior and mechanical properties of Ti microalloyed high strength steel plate were investigated. The results revealed that the double-stage rolling process consist of rolling in the γ recrystallization region and the γ non-recrystallization region was benefical to promoting the mechanical properties of Ti microalloyed steel by achieving grain refinement. It was also found that large amounts of fine TiC (<10 nm) particles were precipitated during the isothermal treatment at 600 °C, which generated a 215 MPa precipitation strengthening effect.