摘要
本文研究了轧制变形及随后热处理对板条马氏体的影响,结果表明:大变形量的重度轧制可使马氏体板条趋于沿轧向排列,层片致密,马氏体板条厚度缩减至20nm左右,在板厚方向上形成了显微层压板结构。低于350℃长时退火,组织处于回复阶段,马氏体形态与轧后近似;高于350℃退火,组织开始进入再结晶期,并有新晶粒生成。
This paper studies the effect of rolling deformation and subsequent heat treatment on lath martensite. The results show that severe rolling allows martensite lath be arranged along the rolling direction, its lamella becomes dense; the thickness of martensite lath is reduced to about 20nm,and laminate composite is formed in the thickness direction. Annealing below 35022, the microstructure is recovered and its morphology shows no difference after rolling. Annealing above 35022, the microstructure is re-crystallized and new grain is formed.
出处
《北华航天工业学院学报》
CAS
2012年第5期1-2,共2页
Journal of North China Institute of Aerospace Engineering
基金
河北省教育厅青年基金(2011252)
河北省教育厅基金(Z2010203)
北华航天工业学院科研基金(KY-2009-02-B)
国家金属材料近净成形工程技术研究中心开放基金(2011010)
河北省科技支撑计划项目(11212143)
关键词
板条马氏体
轧制变形
热处理
lath martensite
rolling deformation
heat treatment
