摘要
利用热模拟试验机对Q235钢进行双道次压缩试验,通过研究其在静态变形过程中再结晶分数的变化规律,揭示不同因素对其静态再结晶的影响机制。结果表明,变形量增加,温度升高,原始奥氏体晶粒尺寸减小及应变速率提高,可加速Q235钢的静态再结晶过程。同时,通过降低变形温度和增加变形量可细化Q235钢奥氏体晶粒。
The static recrystallization behaviors of Q235 steel was studied by thermal simulation testing machine during double pass compression test. The results show that, with the increase of steel deformations and deformation temperatures, the static recrystallinzation proce ss of the steel speeds up, the original austenite grain sizes reduce, and the strain rates increase.Meanwhile, reducing deformation temperature and increasing steel deformation can also refine the austenite grain size.
出处
《铸造技术》
CAS
北大核心
2015年第1期68-70,共3页
Foundry Technology
关键词
低碳钢
奥氏体
静态再结晶
Low carbon steel
austenite
static recrystallization
