利用X射线衍射技术研究了一种超低碳冷轧钢板快速加热过程中的回复和再结晶行为.结果表明加热速率对试样退火过程中的回复和再结晶行为影响显著:640℃退火时,不同加热速率退火条件下的试样均处于回复阶段.X射线衍射峰型的不同表明快速加热时因可用于回复的时间缩短而使试样的回复过程被推迟.720℃退火时,快速加热条件下的试样处于再结晶开始阶段,而慢速加热条件下的试样已基本完成再结晶,处于晶粒长大阶段.760℃退火时,慢速加热条件下试样已完成再结晶,而快速加热处理的试样在板中心处仍存在少量轧态纤维组织.原因主要在于快速加热导致可用于回复和再结晶的时间缩短,而使试样的回复及再结晶行为被推迟.
参考文献
[1] | A. Martinez-de-Guerenu;F. Arizti;M. Diaz-Fuentes .Recovery during annealing in a cold rolled low carbon steel. Part I: Kinetics and microstructural characterization[J].Acta materialia,2004(12):3657-3664. |
[2] | I. Groma;F. Szekely .Evolution of the Dislocation Microstructure: A Model Based on X-Ray Line Profile Measurements[J].Scripta materialia,2006(5):753-757. |
[3] | Devgun M S .Assessment of fracture characteristics with X-ray diffraction techniques[J].Rare Metal Materials and Engineering,1988,100(L1-L32):129-136. |
[4] | Muljono D;Ferry M;Dunne D P .Influence of heating rate on anisothermal recrystallization in low and ultra-low carbon steels[J].Rare Metal Materials and Engineering,2001,303(1-2):90-99. |
[5] | Vandermeer R A;Rath B B .Interface migration during recrystallization:the role of recovery and stored energy gradients[J].metallurgical and materials transactions a-physical metallurgy and materials science,1990,21(05):1143-1149. |
[6] | E. NES .RECOVERY REVISITED[J].Acta Metallurgica et Materialia,1995(6):2189-2207. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%