初始凝固组织对Cr17铁素体不锈钢组织、织构及成形性的影响

钢铁研究学报, 2008, 20(10): 32-0.

初始凝固组织对Cr17铁素体不锈钢组织、织构及成形性的影响

刘海涛 , 杜伟 , 谢胜涛 , 刘振宇 , 王国栋

东北大学轧制技术及连轧自动化国家重点实验室, 辽宁沈阳 110004

State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China

关键词： Cr17铁素体不锈钢;组织;织构;成形性

Effects of Initial Solidification Structure on Microstructure, Texture and Formability of Cr17 Ferritic Stainless Steel

LIU Haitao , DU Wei , XIE Shengtao , LIU Zhenyu , WANG Guodong

Keywords： Cr17 ferritic stainless steel;structure;texture;formability

研究了初始凝固组织对Cr17铁素体不锈钢组织、织构、成形性的影响。分别对柱状晶、等轴晶铸坯进行热轧、退火、冷轧、退火实验。结果表明，等轴晶铸坯热轧试样在退火过程中的再结晶率高于柱状晶铸坯热轧试样。再经相同的冷轧退火工艺后，与柱状晶铸坯冷轧退火试样相比，等轴晶铸坯冷轧退火试样的{001}∥ND织构较弱，{111}∥ND γ织构较强，而且rm值较高。

The effects of initial solidification structure on microstructure and texture and formability of Cr17 ferritic stainless steel were investigated. Equiaxed and columnar grain slabs were hot rolled, annealed, cold rolled and annealed. The major results can be summarized as follows: ① The recrystallization rate of equiaxedHR band is higher than that of columnarHR band. ② EquiaxedCRA shows weaker {001}∥ND texture but stronger {111}∥ND texture and a higher rm in comparison with columnarCRA.

参考文献

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网