Thermal Simulation of Welding Process of X80 Pipeline Steel

YOU Zongbin; LI Dongyan; LI Yezhang; YAN Chen; LIU Yu

doi:10.11973/lhjy-wl202112011

PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING > 2021 > 57(12): 52-54,59. > DOI: 10.11973/lhjy-wl202112011

YOU Zongbin, LI Dongyan, LI Yezhang, YAN Chen, LIU Yu. Thermal Simulation of Welding Process of X80 Pipeline Steel[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2021, 57(12): 52-54,59. DOI: 10.11973/lhjy-wl202112011

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Thermal Simulation of Welding Process of X80 Pipeline Steel

YOU Zongbin^1,2,
LI Dongyan³,
LI Yezhang^1,2,
YAN Chen^1,2,
LIU Yu^1,2

1. National Engineering Laboratory of China Petroleum Pipeline Research Institute, Langfang 065001, China;
2. China Petroleum Pipeline Research Institute Co., Ltd., Langfang 065001, China;
3. North Natural Gas Pipeline Company of China Oil & Gas Pipeline Network Corporation, Tianjin 300000, China

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Received Date: September 17, 2021

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Abstract

X80 pipeline steel was simulated by Gleeble 3500 thermal simulation test machine, the simulated welding heat affected zone continuous cooling transformation (SHCCT) curve of X80 pipeline steel was formulated, and the changes of microstructure and hardness with cooling rate were analyzed. The results show that the cold crack sensitivity index of X80 pipeline steel was less than 0.2%, which had low welding crack sensitivity. The preheating temperature of welding process should be controlled above 47 ℃, and welding at fast cooling rate should be avoided. According to the preliminary inference of impact absorbed energy and SHCCT curve of X80 pipeline steel after thermal simulation, the more reasonable heat input during welding of X80 pipeline steel was 10-20 kJ·cm^-1.
- X80 pipeline steel,
- thermal simulation,
- welding process,
- crack sensitivity,
- heat input

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[1]	于晨阳, 池强, 张伟卫.OD1422 mm的X80级管线钢SH-CCT曲线测定与分析[J].金属热处理, 2020, 45(6):93-97.
[2]	谯明亮, 王同良, 康双双.高强高韧Q420qE桥梁钢SHCCT曲线测试与焊接工艺制定[J].金属材料及热处理, 2018(1):52-55.
[3]	贾坤宁, 王海东, 姜秋月.高强度桥梁钢焊接冷裂纹敏感性研究[J].电焊机, 2012, 42(2):23-25.
[4]	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.
[5]	CHEN X W, QIAO G Y, WANG X, et al. Study on microstructure and mechanical properties of welding coarse grain heat-affected zone of high Nb X80 steels[J].Advanced Science Letters, 2012, 13(1):780-783.
[6]	LIU L, XIAO H, LI Q, et al. Evaluation of the fracture toughness of X70 pipeline steel with ferrite-bainite microstructure[J].Materials Science & Engineering A, 2017, 688:388-395.

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