Austenitic recrystallization behavior of X80 pipeline steel

doi:10.13251/j.issn.0254-6051.2024.10.033

Abstract

Abstract: Effects of deformation amount of single pass deformation and double pass deformation and temperature waiting time on austenite recrystallization and grain growth of X80 pipeline steel were studied by thermal simulation experiments. The results show that the austenite grain size decreases with the increase of single pass deformation amount. When the deformation amount is 25%-30%, the average grain size of austenite of the tested steel is about 22 μm. For the X80 pipeline steel with Nb content of about 0.08%, the austenite can still be fully recrystallized after the deformation at 980 ℃ and then holding for 1 min. The growth trend of austenite grain is not obvious with the increase of temperature waiting time, with the grain size is 22-28 μm. According to the calculation of the recrystallization temperature model, the recrystallization temperature of the tested steel is about 946 ℃. According to the calculation of the temperature drop equation of the slab, the temperature waiting time after single pass deformation should not exceed 200 s.

Key words: pipeline steel, recrystallization, austenite, pass deformation, microstructure

CLC Number:

TG147

Yuan Xiaoming, Cui Chengbo, Ren Huiping, Jia Shujun, Dong Lili. Austenitic recrystallization behavior of X80 pipeline steel[J]. Heat Treatment of Metals, 2024, 49(10): 197-201.

References

[1]刘云旭. 金属热处理原理[M]. 北京: 机械工业出版社, 1981.
[2]Luo X, Chen X H, Wang T, et al. Effect of morphologies of martensite-austenite constituents on impact toughness in intercritically reheated coarse-grained heat-affected zone of HSLA steel[J]. Materials Science and Engineering A, 2018, 710: 192-199.
[3]巩忠旺, 赵志伟, 陈跃华, 等. 中俄东线工程用φ1422 mm X80钢级感应加热弯管研发[J]. 钢管, 2020, 49(3): 25-29.
Gong Zhongwang, Zhao Zhiwei, Chen Yuehua, et al. R&D of φ1422 mm X80 induction-heated bend for Sino-Russia east line project[J]. Steel Pipe, 2020, 49(3): 25-29.
[4]袁良增, 姜金星, 赵丽洋, 等. 加热温度对X80管线钢显微组织和低温韧性的影响[J]. 上海金属, 2023, 45(4): 77-80.
Yuan Liangzeng, Jiang Jinxing, Zhao Liyang, et al. Effect of heating temperature on microstructure and low-temperature toughness of X80 pipeline steel[J]. Shanghai Metals, 2023, 45(4): 77-80.
[5]胡赓祥, 蔡珣, 戎咏华. 材料科学与工程基础[M]. 上海: 上海交通大学出版社, 2010.
[6]蒋昌林, 林涛, 诸建阳, 等. 加热温度对X80钢级弯管用管线钢板冲击韧性的影响[J]. 宽厚板, 2019, 25(4): 5-8.
Jiang Changlin, Lin Tao, Zhu Jianyang, et al. The effect of reheating temperature on impact toughness of X80 grade pipeline plate for elbow[J]. Wide and Heavy Plate, 2019, 25(4): 5-8.
[7]章传国, 郑磊. 轧后加热温度对高NbX80管线钢板组织性能的影响[J]. 钢铁, 2013, 48(1): 82-86.
Zhang Chuanguo, Zheng Lei. Effect of heating temperature after TMCP on microstructure and mechanical properties for X80 steel plate with high Nb content[J]. Iron and Steel, 2013, 48(1): 82-86.
[8]谭会杰, 王海燕, 李德超, 等. X80管线钢连续冷却相变及组织研究[J]. 金属热处理, 2015, 40(7): 91-94.
Tan Huijie, Wang Haiyan, Li Dechao, et al. Continuous cooling transformation and microstructure of X80 pipeline steel[J]. Heat Treatment of Metals, 2015, 40(7): 91-94.
[9]田晨超, 许飞, 焦磊, 等. 加热温度对X80钢级热煨弯管组织性能的影响[J]. 焊管, 2019, 37(6): 11-16.
Tian Chenchao, Xu Fei, Jiao Lei, et al. Effects of heating temperature on microstructures and properties of X80 grade hot-bending bends[J]. Welded Pipe and Tube, 2019, 37(6): 11-16.
[10]刘迎来, 池强, 王鹏. 加热温度对X80弯管钢组织与性能的影响[J]. 金属热处理, 2010, 35(10): 2-4.
Liu Yinglai, Chi Qiang, Wang Peng. Influence of heating temperature on microstructure and properties of X80 steel bends[J]. Heat Treatment of Metals, 2010, 35(10): 2-4.
[11]Wang X, Xiao F R, Fu Y H, et al. Material development for grade X80 heavy-wall hot induction bends[J]. Materials Science and Engineering A, 2011, 530: 539-547.
[12]董露, 郝世英, 张骁勇, 等. 加热温度对X100热煨弯管钢组织和性能的影响[J]. 材料热处理学报, 2013, 34(6): 42-46.
Dong Lu, Hao Shiying, Zhang Xiaoyong, et al. Effect of heating temperature on microstructure and properties of X100 grade pipeline steel for heat-bending bend[J]. Transactions of Materials and Heat Treatment, 2013, 34(6): 42-46.
[13]胡赓详, 蔡珣, 戎咏华. 材料科学基础[M]. 上海: 上海交通大学出版社, 2006.
[14]赵志业. 金属塑性变形与轧制理论[M]. 北京: 冶金工业出版社, 2011.

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