Microstructure and embrittlement of the fine-grained heat-affected zone of ASTM4130 steel

Li-ying Li; Yong Wang; Tao Han; Chao-wen Li

doi:10.1007/s12613-011-0456-3

Volume 18 Issue 4

Aug. 2011

Turn off MathJax

Article Contents

Abstract

International Journal of Minerals, Metallurgy and Materials > 2011 > 18(4): 419-423. > DOI: 10.1007/s12613-011-0456-3

Li-ying Li, Yong Wang, Tao Han, and Chao-wen Li, Microstructure and embrittlement of the fine-grained heat-affected zone of ASTM4130 steel, Int. J. Miner. Metall. Mater., 18(2011), No. 4, pp.419-423. https://dx.doi.org/10.1007/s12613-011-0456-3

Cite this article as:

PDF (2087 KB)

Microstructure and embrittlement of the fine-grained heat-affected zone of ASTM4130 steel

Author Affilications

College of Mechanical and Electronic Engineering, China University of Petroleum, Dongying, 257061, China

Funds:

This work was financially supported by the National High-Tech Research and Development Program of China (No.2006AA09A103-6).

Received: 30 July 2010; Revised: 07 October 2010; Accepted: 14 October 2010; Available Online: 13 June 2021

Graphical Abstract

Abstract

Abstract

The mechanical properties and microstructure features of the fine-grained heat-affected zone (FGHAZ) of ASTM4130 steel was investigated by optical microscope (OM), scanning electron microscope (SEM), transmission electron microscope (TEM), and welding thermal simulation test. It is found that serious embrittlement occurs in the FGHAZ with an 81.37% decrease of toughness, compared with that of the base metal. Microstructure analysis reveals that the FGHAZ is mainly composed of acicular, equiaxed ferrite, granular ferrite, martensite, and martensite-austenite (M-A) constituent. The FGHAZ embrittlement is mainly induced by granular ferrite because of carbides located at its boundaries and sub-boundaries. Meanwhile, the existence of martensite and M-A constituent, which distribute in a discontinuous network, is also detrimental to the mechanical properties.
- ASTM4130 steel,
- welding,
- heat-affected zone,
- microstructure,
- embrittlement

FullText(HTML)

References (0)

[1]	Zhiyu Du, Rongjian Shi, Xingyu Peng, Kewei Gao, Xiaolu Pang. Review on the design of high-strength and hydrogen-embrittlement-resistant steels [J]. International Journal of Minerals, Metallurgy and Materials, 2024, 31(7): 1572-1589. DOI: 10.1007/s12613-024-2900-1
[2]	Rong-jian Shi, Zi-dong Wang, Li-jie Qiao, Xiao-lu Pang. Effect of in-situ nanoparticles on the mechanical properties and hydrogen embrittlement of high-strength steel [J]. International Journal of Minerals, Metallurgy and Materials, 2021, 28(4): 644-656. DOI: 10.1007/s12613-020-2157-2
[3]	Ali Alavi Nia, Ali Shirazi. Effects of different friction stir welding conditions on the microstructure and mechanical properties of copper plates [J]. International Journal of Minerals, Metallurgy and Materials, 2016, 23(7): 799-809. DOI: 10.1007/s12613-016-1294-0
[4]	Xin-feng Li, Jin Zhang, Ming-ming Ma, Xiao-long Song. Effect of shot peening on hydrogen embrittlement of high strength steel [J]. International Journal of Minerals, Metallurgy and Materials, 2016, 23(6): 667-675. DOI: 10.1007/s12613-016-1279-z
[5]	Xu-ming Lü, Shi-lei Li, Hai-long Zhang, Yan-li Wang, Xi-tao Wang. Effect of thermal aging on the fatigue crack growth behavior of cast duplex stainless steels [J]. International Journal of Minerals, Metallurgy and Materials, 2015, 22(11): 1163-1170. DOI: 10.1007/s12613-015-1181-0
[6]	Jing Wang, Min-xu Lu, Lei Zhang, Wei Chang, Li-ning Xu, Li-hua Hu. Effect of welding process on the microstructure and properties of dissimilar weld joints between low alloy steel and duplex stainless steel [J]. International Journal of Minerals, Metallurgy and Materials, 2012, 19(6): 518-524. DOI: 10.1007/s12613-012-0589-z
[7]	Ming-xia Shen, Yin-xin Cui, Jing He, Yao-ming Zhang. Thermal conductivity model of filled polymer composites [J]. International Journal of Minerals, Metallurgy and Materials, 2011, 18(5): 623-631. DOI: 10.1007/s12613-011-0487-9
[8]	Li-jun Wang, Qing-wu Cai, Hui-bin Wu, Wei Yu. Effects of Si on the stability of retained austenite and temper embrittlement of ultrahigh strength steels [J]. International Journal of Minerals, Metallurgy and Materials, 2011, 18(5): 543-550. DOI: 10.1007/s12613-011-0475-0
[9]	Ying-ying Liu, Ze-kun Yao, Hong-zhen Guo, Hang-hang Yang. Microstructure and property of the Ti-24Al-15Nb-1.5Mo/TC11 joint welded by electron beam welding [J]. International Journal of Minerals, Metallurgy and Materials, 2009, 16(5): 568-575. DOI: 10.1016/S1674-4799(09)60098-4
[10]	Lin Zhao, Wuzhu Chen, Xudong Zhang, Jiguo Shan. Study on laser welded heat-affected zone in new ultralow carbon bainitic steel [J]. International Journal of Minerals, Metallurgy and Materials, 2007, 14(2): 136-140. DOI: 10.1016/S1005-8850(07)60027-9