Microstructure and properties of heat affected zone of high strength steel with rare earth

LU Bin; CHEN Furong; FU Xueyi

doi:10.12073/j.hjxb.20200407001

TRANSACTIONS OF THE CHINA WELDING INSTITUTION > 2020 > 41(6): 85-89. > DOI: 10.12073/j.hjxb.20200407001

LU Bin, CHEN Furong, FU Xueyi. Microstructure and properties of heat affected zone of high strength steel with rare earth[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(6): 85-89. DOI: 10.12073/j.hjxb.20200407001

Citation:

PDF (1173 KB)

Microstructure and properties of heat affected zone of high strength steel with rare earth

LU Bin^{1, 2,},
CHEN Furong^1, ,,
FU Xueyi²

1.
Inner Mongolia University of Technology, Hohhot, 010051, China
2.
Inner Mongolia Baotou Steel Union Co., Ltd. Baotou, 014010, China

More Information

Received Date: April 06, 2020
Available Online: September 26, 2020

Graphical Abstract

Abstract

Abstract

The overall performance and service life of engineering equipment can be greatly improved for the heavy use of high-strength steel, but it does not change the fact that the weak performance area after welding is still the heat affected zone(HAZ). By the proper rare earth treatment technology, not only the rare earth inclusions with beneficial morphology, size and distribution can be formed in the steel, but also the growth of original austenite grain can be restrained during the welding process. It is actually for these reasons that the welding performance of the steel are boosted.In this study, a kind of 0.18% C high-strength steel with rare earth is produced. The thermal cycling processes under 4 kinds of heat input are simulated by the Gleeble-3500 thermal simulator. The microstructure transformation of HAZ is observed by the optical microscope. The impact absorption energy of HAZ is measured by the testing machine. The changes of original austenite grain size under different cooling rates are measured. The results show that when the welding heat input is 25 kJ/cm, the HAZ microstructure is mainly martensite with fine grain size, and then the impact toughness and hardness are the highest level. When the heat input is higher than 50 kJ/cm, the upper bainite and granular bainite are formed, and the grains grow up gradually, resulting in the decrease of both toughness and hardness. The C content of the test steel is 0.18%. During the thermal cycle the coarse martensite structure appears, forming the harden structure without the acicular ferrite structure.
- high strength steel,
- rare earth,
- welding heat affected zone,
- microstructure,
- properties

FullText(HTML)

References (17)

References

李少峰, 马成勇, 宋志刚, 等. 800 MPa级高强钢焊接接头组织及力学性能[J]. 焊接学报, 2020, 41(5): 91 − 96.

Li Shaofeng, Ma Chengyong, Song Zhigang, et al. Study on the welding joint microstructure and mechanical properties of 800 MPa grade high stress steel[J]. Transactions of the China Welding Institution, 2020, 41(5): 91 − 96.

张洪涛, 桑健, 王琪晨, 等. TATM700钢等离子-MIG复合焊接工艺[J]. 焊接学报, 2019, 40(12): 25 − 30.

Zhang Hongtao, Sang Jian, Wang Qichen, et al. Research on plasma-MIG hybrid welding process of TATM700 steel[J]. Transactions of the China Welding Institution, 2019, 40(12): 25 − 30.

Yang L, Jiang X H, Wang X H. Study on welding process performance of HG70D high strength steel plate[J]. China Welding, 2018, 27(3): 59 − 64.

张元杰, 彭云, 马成勇, 等. Q890 高强钢焊接淬硬倾向和冷裂纹敏感性[J]. 焊接学报, 2013, 34(6): 53 − 56.

Zhang Yuanjie, Peng Yun, Ma Chengyong, et al. Harden quenching tendency and cold cracking susceptibility of Q890 steel during welding[J]. Transactions of the China Welding Institution, 2013, 34(6): 53 − 56.

苏小虎, 栗卓新, 李红, 等. 高强钢金属芯焊丝E120C-K4熔敷金属粗晶区显微组织对冲击韧性的影响[J]. 焊接学报, 2019, 40(10): 48 − 53.

Su Xiaohu, Li Zhuoxin, Li Hong, et al. Microstructure to properties of coarse grained heat affected zone in deposited weld metal of metal cored wire E120C-K4 SU[J]. Transactions of the China Welding Institution, 2019, 40(10): 48 − 53.

张继魁, 辛莹, 张曼曼. 汽车大梁用低合金高强度钢板的性能与发展[J]. 汽车工艺与材料, 2004(6): 42 − 46. doi: 10.3969/j.issn.1003-8817.2004.06.008

Zhang Jikui, Xin Ying, Zhang Manman. Property and development of high strength low alloy hot rolled steel sheet for truck frame use[J]. Automobile Technology & Material, 2004(6): 42 − 46. doi: 10.3969/j.issn.1003-8817.2004.06.008

陆斌, 陈芙蓉, 智建国, 等. 应用稀土氧化物冶金技术改善高强钢焊接性能[J]. 金属学报, 2020, 56(9): 1206 − 1216. doi: 10.11900/0412.1961.2020.00052

Lu Bin, Chen Furong, Zhi Jianguo, et al. Enhanced welding properties of high strength steel via rare earth oxide metallurgy technology[J]. Acta Metallurgica Sinica, 2020, 56(9): 1206 − 1216. doi: 10.11900/0412.1961.2020.00052

安同邦, 田志凌, 单际国, 等. 保护气对 1 000 MPa 级熔敷金属组织及力学性能的影响[J]. 金属学报, 2015, 51(12): 1489 − 1499. doi: 10.11900/0412.1961.2015.00294

An Tongbang, Tian Zhiling, Shan Jiguo, et al. Effect of shielding gas on micrpstructure and performance of 1 000 MPa grade deposited metals[J]. Acta Metallurgica Sinica, 2015, 51(12): 1489 − 1499. doi: 10.11900/0412.1961.2015.00294

陆斌, 张军, 张文博, 等. 稀土耐磨钢绿色产品设计与研发[J]. 包钢科技, 2019, 45(6): 6 − 9, 17. doi: 10.3969/j.issn.1009-5438.2019.06.003

Lu Bin, Zhang Jun, Zhang Wenbo, et al. Design and research for green products of wear-resistant steel with rare earth[J]. Sci. and Tech. of Baotou steel, 2019, 45(6): 6 − 9, 17. doi: 10.3969/j.issn.1009-5438.2019.06.003

陈付红, 丁伟, 黄威, 等. 国外先进公司工程机械用高强钢发展现状[J]. 上海金属, 2015(1): 47 − 51. doi: 10.3969/j.issn.1001-7208.2015.01.011

Chen Fuhong, Ding Wei, Huang Wei, et al. Developmet status of foreign high strength steel for engineering machinery[J]. Shanghai Metal, 2015(1): 47 − 51. doi: 10.3969/j.issn.1001-7208.2015.01.011

Lan L, Qiu C, Zhao D, et al. Microstructural characteristics and toughness of the simulated coarse grained heat affected zone of high strength low carbon bainitic steel[J]. Material Science & Engineering: A, 2011, 529(1): 192 − 200.

张文博, 樊立峰, 陆斌, 等. 稀土La在包钢CSP无取向电工钢中的应用研究[J]. 包钢科技, 2019, 45(6): 85 − 90. doi: 10.3969/j.issn.1009-5438.2019.06.021

Zhang Wenbo, Fan Lifeng, Lu Bin, et al. Application research on rare earth La in CSP non-oriented electrical steel of Baotou steel[J]. Science and Technology of Baotou Steel, 2019, 45(6): 85 − 90. doi: 10.3969/j.issn.1009-5438.2019.06.021

Kim S, Kang D, Kim T W, et al. Fatigue crack growth behavior of the simulated HAZ of 800 MPa grade high-performance steel[J]. Material Science & Engineering: A, 2011, 528(6): 2331 − 2338. doi: 10.1016/j.msea.2010.11.089

Lambert-Perlade A, Gourgues A F, Pineau A. Austenite to bainite phase transformation in the heat-affected zone of a high strength low alloy steel[J]. Acta Mater, 2004, 52(8): 2337 − 2348. doi: 10.1016/j.actamat.2004.01.025

Shome M, Gupta O P, Mohanty O N. Effect of simulate thermal cycles on the microstructure of the heat-affected zone in HSAL-80 and HSLA-100 steel plates[J]. Metallurgical and Materials Transactions A, 2004, 35(3): 985 − 996. doi: 10.1007/s11661-004-0025-8

王龙妹, 稀土在低合金及合金钢中的应用[M].北京: 冶金工业出版社, 2016.

Wang Longmei.Applcation of rare earth in low alloy and alloy steel[M]. Beijing: Metallurgical Industry Press, 2016.

余圣甫, 杨可, 雷毅, 等. 大热输入焊接高强度低合金钢热影响区的晶粒细化[J]. 焊接学报, 2008, 29(3): 17 − 19. doi: 10.3321/j.issn:0253-360X.2008.03.005

Yu Shengfu, Yang Ke, Lei Yi, et al. Grain refinement of heat affected zone of high strength low alloy steel by large heat input welding[J]. Transactions of the China Welding Institution, 2008, 29(3): 17 − 19. doi: 10.3321/j.issn:0253-360X.2008.03.005

[1]	FU Kuijun, GAO Mingze, LENG Xuesong, YAN Junchun, TANG Haoyang. Evolution of microstructure and impact property in welding HAZ of TiNb steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 36-41. DOI: 10.12073/j.hjxb.2019400124
[2]	XIAO Xiaoming, PENG Yun, MA Chengyong, TIAN Zhiling. Effect of heat input on microstructure and properties of weld metal in MAG welding of weathering steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(6): 41-46.
[3]	HE Xiaomei, WANG Yaomian, ZHANG Conghui. Influence of high energy shot peening on microstructure and properties of TC4 welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(6): 40-44.
[4]	QIN Hua, LIU Zhengjun, SU Yunhai, LIN Jinliang. Effect of heat input on microstructure and properties of welded joint of BWELDY960Q steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(6): 103-106.
[5]	WU Bingzhi, XU Yujun, AN Hongliang, SUN Jingtao. Property and microstructure of deposited metal with high strength wire[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(4): 53-57.
[6]	QI Yanchang, ZHANG Xiaomu, PENG Yun, TIAN Zhiling. Effect of aging temperature on microstructure and properties of deposited metal for type 15-5PH precipitation hardened stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (10): 105-108.
[7]	WEI Jinshan, QI Yanchang, PENG Yun, TIAN Zhilin. Effect of heat input on the microstructure and properties of weld metal welding in a 800 MPa grade heavy steel plate with narrow gap groove[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (6): 31-34.
[8]	ZHANG Xiaoyong, GAO Huilin, ZHUANG Chuanjing, JI Lingkang. Influence of welding heat input on microstructure and properties of coarse grain heat-affected zone in X100 pipeline steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (3): 29-32.
[9]	LIU Qibin, LI Bin. Microstructure and properties of 65Mn spring steel by laser welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (9): 105-108.
[10]	YAO Wei, GONG Shui-li, CHEN Li. Microstructure and mechanical properties of laser welded joint of titanium alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (2): 69-72,76.

Cited By

Cited by

Periodical cited type(8)

1.	涂文斌，胡志华，邹雨柔，刘冠鹏，王善林，陈玉华. 时效时间和Sb添加对Sn-9Zn-3Bi/Cu焊点界面金属间化合物生长行为的影响. 材料导报. 2025(06): 193-198 .
2.	涂文斌，吴鸿燕，梅琪，王韩冰，吴吉洋，颜文俊. 添加Sb对Sn-9Zn-3Bi/Cu钎料接头显微组织及力学性能的影响. 电子元件与材料. 2024(09): 1154-1160+1166 .
3.	任安世，曲松涛，董新华，史清宇，张弓，朱忠言. 氧含量对Sn-9Zn-2.5Bi-1.5In低温波峰焊焊接性能的影响. 焊接学报. 2022(04): 68-73+99+117 . 本站查看
4.	薛鹏，何鹏，龙伟民，宋闽. 稀土、Ga元素及其协同效应对无铅钎料组织和性能的影响. 焊接学报. 2021(04): 1-19+97 . 本站查看
5.	刘广柱，岳迪，康宇，谢宏宇，何定金. 纳米Cr颗粒对Sn-Zn-Bi-In/Cu钎焊焊点性能的影响. 材料工程. 2021(11): 163-170 .
6.	刘广柱，岳迪，康宇，孙建宇. 含Bi、Ga元素的Sn-9Zn低温无铅钎料研究. 热加工工艺. 2021(23): 36-40 .
7.	孙文栋，龚世良，张弓，史清宇. 氮气气氛下氧含量对Sn-Zn/Cu焊接接头组织的影响及其产业应用. 机械制造文摘(焊接分册). 2020(02): 1-6 .
8.	李正兵，胡德安，陈益平，程东海，何凯，郭义乐. Fe颗粒对时效过程中SnBi/Cu接头组织及性能影响. 焊接学报. 2020(08): 22-28+98 . 本站查看

Other cited types(5)

Get Citation

PDF

XML

Article views (343) PDF downloads (21) Cited by(13)

Turn off MathJax

Article Contents

Abstract

References

Microstructure and properties of heat affected zone of high strength steel with rare earth