Microstructure and properties of ultra-high strength steel joints welded with high nitrogen austenite wire

YANG Dongqing; XIONG Hanying; HUANG Yong; PENG Yong; WANG Kehong

doi:10.12073/j.hjxb.20200830001

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2020 > 41(12): 44-48. > DOI: 10.12073/j.hjxb.20200830001

YANG Dongqing, XIONG Hanying, HUANG Yong, PENG Yong, WANG Kehong. Microstructure and properties of ultra-high strength steel joints welded with high nitrogen austenite wire[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(12): 44-48. DOI: 10.12073/j.hjxb.20200830001

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Microstructure and properties of ultra-high strength steel joints welded with high nitrogen austenite wire

Key Laboratory of Controlled Arc Intelligent Additive Manufacturing Technology, Ministry of Industry and Information Technology, Nanjing, 210094, China

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Received Date: August 29, 2020
Available Online: January 06, 2021

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Abstract

Abstract

In order to solve the problem of cold cracks in ultra-high-strength steel welding, the GMAW process experiment was carried out with high-nitrogen austenitic wire with lower strength than the base metal to study the microstructure and properties of ultra-high-strength steel welded joints at different grooved angles. The results show that welded joints are well formed without cracks according to cross-section of weld, the microstructure near the fusion line is mainly acicular and lath martensite, and the weld structure is mainly austenite and ferrite dendrites surrounded by austenite matrix; the average hardness of the martensite zone near the fusion line is 530 HV; the average hardness of the weld zone is 275 HV; compared to 60° grooved joints, the hardness of the martensite structure near the fusion line of 90° grooved joints are higher; The average tensile strength reaches 850 MPa, and the highest is 887 MPa, while the average tensile strength of 60° groove joints is only 690 MPa.
- ultra-high strength steel,
- high nitrogen austenitic wire,
- microstructure,
- mechanical properties

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成应晋, 刘海涛, 杜义, 等. 基于插销试验的10Ni8CrMoV钢焊接冷裂纹敏感性分析[J]. 材料开发与应用, 2016, 31(5): 13 − 18.

Cheng Yingjin, Liu Haitao, Du Yi, et al. Analysis of 10Ni8CrMoV steel welding cold cracking susceptibility on the basis of implant test[J]. Material Development and Application, 2016, 31(5): 13 − 18.

管彦朋, 李亚江, 王娟. 1 000 MPa及以上级高强钢焊接性研究现状[J]. 机械制造文摘(焊接分册), 2015(3): 30 − 34.

Guan Yanpeng, Li Yajiang, Wang Juan. Present situation of the study on the weldability of 1 000 MPa and above high strength low alloy steel[J]. Welding Digest of Machinery Manufacturing (Welding Volume), 2015(3): 30 − 34.

雷爱娣, 王立军, 蔡庆伍. 1 500 MPa级低合金超高强钢微观组织与力学性能[J]. 金属学报, 2010, 46(6): 687 − 694. doi: 10.3724/SP.J.1037.2010.00687

Lei Aidi, Wang Lijun, Cai Qingwu. Microstructure and mechanical properties of 1 500 MPa grade ultar-high strength low alloy steel[J]. Acta Metallurgica Sinica, 2010, 46(6): 687 − 694. doi: 10.3724/SP.J.1037.2010.00687

Berdnikova O, Pozniakov V, Alekseienko T, et al. Effect of the structure on the mechanical properties and cracking resistance of welded joints of low-alloyed high-strength steels[J]. Procedia Structural Integrity, 2019, 16: 89 − 96. doi: 10.1016/j.prostr.2019.07.026

滕彬, 李小宇, 雷振, 等. 低合金高强钢激光-电弧复合热源焊接冷裂纹敏感性分析[J]. 焊接学报, 2010, 31(11): 61 − 64.

Teng Bin, Li Xiaoyu, Lei Zhen, et al. Analysis on cold crack sensitivity of low alloy high strength steel weld by laser-arc hybrid welding[J]. Transactions of the China Welding Institution, 2010, 31(11): 61 − 64.

李大用, 杨东青, 王苹, 等. 高铬镍奥氏体焊丝焊接10Ni5CrMoV钢接头组织性能分析[J]. 焊接学报, 2017, 38(5): 87 − 91. doi: 10.12073/j.hjxb.20170519

Li Dayong, Yang Dongqing, Wang Pin, et al. Analysis of microstructure and performance of 10Ni5CrMoV steel joint welded by high chromium nickel austenitic wire[J]. Transactions of the China Welding Institution, 2017, 38(5): 87 − 91. doi: 10.12073/j.hjxb.20170519

赵琳, 田志凌, 彭云, 等. 1Cr22Mn16N高氮钢激光焊接I. 焊接保护气体组成和热输入对焊缝氮含量及气孔性的影响[J]. 焊接学报, 2007, 28(8): 89 − 91. doi: 10.3321/j.issn:0253-360x.2007.08.023

Zhao Lin, Tian Zhiling, Peng Yun, et al. Laser welding of 1Cr22Mn16N high nitrogen steel I. Influence of shielding gas composition and heat input on N-content and porosity of weld metal[J]. Transactions of the China Welding Institution, 2007, 28(8): 89 − 91. doi: 10.3321/j.issn:0253-360x.2007.08.023

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[2]	FANG Naiwen, HUANG Ruisheng, YAN Dejun, YANG Yicheng, MA Yiming, LENG Bing. Effect of welding heatinput on microstructure and properties of MAG welded joint for low nickel high nitrogen austenitic stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(1): 70-75. DOI: 10.12073/j.hjxb.20200502001
[3]	MING Zhu, WANG Kehong, WANG Wei, WANG Youqi. Effect of cooling rate on the microstructure and mechanical properties of high nitrogen stainless steel weld metal[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(10): 31-35. DOI: 10.12073/j.hjxb.2019400259
[4]	MING Zhu, WANG Kehong, WANG Wei, FAN Chenglei, WANG Youqi. Effects of nitrogen content and welding current on microstructure and properties of the weld of high nitrogen austenite steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(1): 104-108. DOI: 10.12073/j.hjxb.2019400021
[5]	LI Dayong, YANG Dongqing, WANG Ping, ZHANG Guangjun. Analysis on microstructure and properties of under-matching weld joint of high strength steel 10Ni5CrMoV[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 87-91. DOI: 10.12073/j.hjxb.20170519
[6]	JING Hao, WANG Kehong, QIANG Wei, KONG Jian. Influence of N-content on microstructure and mechanical properties of PMIG welding joints of high nitrogen steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 95-98. DOI: 10.12073/j.hjxb.20170422
[7]	ZHAO Hongyun, LIU Hongwei. Microstructure and properties of TIG welded 22MnB5 ultra high strength steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(2): 67-69,78.
[8]	ZHAO Lin, TIAN Zhiling, PENG Yun, XU Lianghong, LI Ran. Laser welding of high nitrogen steel 1Cr22Mn16N Ⅲ.Microstructure and mechanical properties of welding heat-affected zone[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (12): 26-30.
[9]	ZHAO Lin, TIAN Zhiling, PENG Yun, ZHAO Xiaobing, QI Yanchang. Laser welding of high nitrogen steel 1Cr22Mn16N-Ⅱ.microstructure and mechanical properties of weld metal[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (9): 80-82,86.
[10]	FU Rui-dong, LI Liang-yu, ZHENG Yang-zeng. TIG Welding of High Manganese Austenitic Steel for Super Cryogenic Application[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2001, (3): 21-24.

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Microstructure and properties of ultra-high strength steel joints welded with high nitrogen austenite wire