TWIP steels with 70% cold-rolled reduction were heated at 500, 600, 700, 800, 900, 1000, and 1100 ℃. Then, the properties before and after heating were examined through tensile and hardness experiments. The microstru...TWIP steels with 70% cold-rolled reduction were heated at 500, 600, 700, 800, 900, 1000, and 1100 ℃. Then, the properties before and after heating were examined through tensile and hardness experiments. The microstructures were also analyzed by optical microscopy and transmission electron microscopy. The relationship between the properties and microstructure was examined as well. Finally, the evolution process of cold-rolled microstructures during heating was discussed in detail. Moreover, some conclusions can be drawn, and the heating evolution characteristics are described.展开更多
TMCP(Thermal Mechanical Control Process)是20世纪钢铁业最伟大的成就之一。TMCP技术是通过控制轧制温度和轧后冷却速度、冷却的开始温度和终止温度,来控制钢材高温奥氏体组织形态以及相变过程,最终控制钢材的组织类型、形态和分布,...TMCP(Thermal Mechanical Control Process)是20世纪钢铁业最伟大的成就之一。TMCP技术是通过控制轧制温度和轧后冷却速度、冷却的开始温度和终止温度,来控制钢材高温奥氏体组织形态以及相变过程,最终控制钢材的组织类型、形态和分布,提高钢材的组织和力学性能。介绍了低碳低合金高强钢基于TMCP的发展历程、研究进展、组织分析,并展望了TMCP技术下低碳低合金高强钢未来的发展方向。展开更多
基金Funded by the National Natural Science Foundation o f China(51201154)the Natural Science Foundation of Shanxi Province(2014011015-1)
文摘TWIP steels with 70% cold-rolled reduction were heated at 500, 600, 700, 800, 900, 1000, and 1100 ℃. Then, the properties before and after heating were examined through tensile and hardness experiments. The microstructures were also analyzed by optical microscopy and transmission electron microscopy. The relationship between the properties and microstructure was examined as well. Finally, the evolution process of cold-rolled microstructures during heating was discussed in detail. Moreover, some conclusions can be drawn, and the heating evolution characteristics are described.
文摘TMCP(Thermal Mechanical Control Process)是20世纪钢铁业最伟大的成就之一。TMCP技术是通过控制轧制温度和轧后冷却速度、冷却的开始温度和终止温度,来控制钢材高温奥氏体组织形态以及相变过程,最终控制钢材的组织类型、形态和分布,提高钢材的组织和力学性能。介绍了低碳低合金高强钢基于TMCP的发展历程、研究进展、组织分析,并展望了TMCP技术下低碳低合金高强钢未来的发展方向。