Affect of Technological Parameter of Recrystallization Zone Rolling on Microstructure and Texture of X80 Pipeline Steel

Special Steel ›› 2021, Vol. 42 ›› Issue (4): 12-16.

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Affect of Technological Parameter of Recrystallization Zone Rolling on Microstructure and Texture of X80 Pipeline Steel

Ye Xiaoyu^1,2, Huang Zhenyi¹, Li Ba³, Chen Shu² , Jia Shujun³，Zuo Jun²

1. School of Metallugy Engineering, Anhui Polytechnical University, Ma'anshan 243002；
2. State Key Lab of Vanadium and Titanium Resources Comprehesive Uitilization, Pangang Group Research Institute Co Ltd, Panzhihua 617000；
3. Institute of Engineering Steel, Central Iron and Steel Institute, Beijing 100081；

Received:2021-02-03 Online:2021-07-15 Published:2022-03-09

再结晶区轧制工艺参数对X80管线钢组织及织构的影响

叶晓瑜^1,2，黄贞益¹，李拔³，陈述²，贾书君³，左军²

1. 安徽工业大学冶金工程学院，马鞍山243002；
2. 攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室，攀枝花617000；
3. 钢铁研究总院工程用钢所，北京100081

作者简介:叶晓瑜(1982-)，女，硕士(2008年昆明理工大学)，正高级工程师,2004年昆明理工大学(本科)毕业，热轧板带产品开发。

Abstract

Abstract: Through single pass and two pass thermal simulation experiment, the rolling process in recrystallization zone with deformation 20% ~ 50% at deformation temperature 980,1 000,1 020 °C , and with different deformation 25%~40% at 1000°C ,and interval time (1~20 s) after deformed at 1000°C is studied. And the affect of deformation process interval time, deformation temperature and deformation quantity on grain size, cleavage unit size and texture are characterized and analyzed through metallographic examination, EBSD ( Electron Backscattering Diffraction) and X-ray deffraction (XRD). The results show that microstructure grain size and cleavage unit size greatly refine with recrystallization interval time decreasing, deformation temperature decreasing in recrystallization zone and deformation increasing. When deformation temperature decreases to 980°C，more{110} glide plane can be obtained, thereby increasing toughness.

Key words: Recrystallization, Deformation Interval Time, Deformation Temperature, Deformation Quantity, Microstructure, Texture

摘要： 通过单道次和双道次热模拟实验,研究了变形量20%～50%在980、1000、1020 ℃变形温度、1000℃下不同变形量(25%～40%)以及1 000℃变形后间隔不同时间(1～20 s)的再结晶区的轧制过程。结合金相检测、电子背散衍射(EBSD)及X-射线衍射(XRD)等检测方法表征和分析了变形过程中的间隔时间、变形温度和变形量对晶粒尺寸、解理单元尺寸以及织构的影响。结果表明,随着再结晶间隔时间的减少、再结晶区变形温度的降低和变形量的增加,组织晶粒尺寸和解理单元尺寸均细化显著。当变形温度降低至980 ℃时,可获得更多的{110}滑移面,使得韧性提高。

关键词: 再结晶区, 变形间隔时间, 变形温度, 变形量, 组织织构

Ye Xiaoyu, Huang Zhenyi, Li Ba, Chen Shu , Jia Shujun and Zuo Jun. Affect of Technological Parameter of Recrystallization Zone Rolling on Microstructure and Texture of X80 Pipeline Steel[J]. Special Steel, 2021, 42(4): 12-16.

叶晓瑜, 黄贞益, 李拔, 陈述, 贾书君, 左军. 再结晶区轧制工艺参数对X80管线钢组织及织构的影响[J]. 特殊钢, 2021, 42(4): 12-16.

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Affect of Technological Parameter of Recrystallization Zone Rolling on Microstructure and Texture of X80 Pipeline Steel

再结晶区轧制工艺参数对X80管线钢组织及织构的影响

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