摘要
通过热模拟实验 ,考察了不同变形温度和不同奥氏体晶粒尺寸等条件下保温对低碳钢形变后组织演变的影响。结果表明 ,在较低的温度下变形得到的铁素体在保温时更稳定 ,随温度升高 ,易发生铁素体向奥氏体的逆相变。细晶奥氏体转变后的铁素体在保温时长大缓慢 ,所得组织稳定 。
The influence of the holding time in different conditions of deforming temperature as well as primal austenite grain sizes on the microstructure of transformation were investigated. The results suggested that ferrite grains obtained at lower deforming temperature were more stable during holding, the reverse transformation from ferrite to austenite tended to happen at a higher temperature. Ferrite transformed from finer austenite grains grew not as distinctly as those from coarser austenite grains, and the microstructure were more homogenous after holding for some time.
出处
《热加工工艺》
CSCD
北大核心
2003年第3期3-5,共3页
Hot Working Technology
关键词
低碳钢
形变诱导相变
保温
逆相变
low carbon steel
strain induced transformation
holding
reverse transformation