IMR OpenIR
Effect of Mg Addition on the Microstructure and Properties of a Heat-Affected Zone in Submerged Arc Welding of an Al-Killed Low Carbon Steel
Li, Yandong1; Xing, Weiwei2; Li, Xiaobing2; Chen, Bo2; Ma, Yingche2; Liu, Kui2; Min, Yi3
Corresponding AuthorLi, Xiaobing(xbli@imr.ac.cn)
2021-05-01
Source PublicationMATERIALS
Volume14Issue:9Pages:19
AbstractTo reveal the effect of Mg treatment on the microstructure evolution behavior in the actual steel welding process, the microstructure and properties of Al-deoxidized high-strength ship plate steel with Mg addition were analyzed after double-side submerged arc welding. It was found that the Al-Mg-O + MnS inclusion formed under 26 ppm Mg treatment could promote acicular ferrite (AF) nucleation in the coarse-grained heat-affected zone (CGHAZ) and inhibit the formation of widmanstatten ferrite and coarse grain boundary ferrite. In the fine-grained heat-affected zone (FGHAZ) and intercritical heat-affected zone (ICHAZ), polygonal ferrite and pearlite were dominant. Al-Mg-O+MnS cannot play a role in inducing AF, but the grain size of ferrite was refined by Mg addition. The impact toughness in HAZ of the Mg-added steel was higher than that of Mg-free steel. With the heat-input rising from 29.55 to 44.11 kJ/cm, it remained relatively stable in Mg-treated steel. From the fusion line to the base metal, the micro-hardness of the fusion zone, CGHAZ, ICHAZ and FGHAZ decreased to some extent after Mg addition, which means the cold cracking tendency in the welding weak zone could be reduced. Finally, the mechanisms of Mg-containing inclusion-induced AF were also systematically discussed.
KeywordAl-deoxidized low carbon steel Mg– Al– O inclusion heat-affected zone (HAZ) acicular ferrite submerged arc welding
Funding OrganizationNational Natural Science Foundation of China
DOI10.3390/ma14092445
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51801210]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000650634500001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161607
Collection中国科学院金属研究所
Corresponding AuthorLi, Xiaobing
Affiliation1.Yangtze Normal Univ, Key Lab Extraordinary Bond Engn & Adv Mat Technol, Chongqing 408100, Peoples R China
2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
3.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
Recommended Citation
GB/T 7714
Li, Yandong,Xing, Weiwei,Li, Xiaobing,et al. Effect of Mg Addition on the Microstructure and Properties of a Heat-Affected Zone in Submerged Arc Welding of an Al-Killed Low Carbon Steel[J]. MATERIALS,2021,14(9):19.
APA Li, Yandong.,Xing, Weiwei.,Li, Xiaobing.,Chen, Bo.,Ma, Yingche.,...&Min, Yi.(2021).Effect of Mg Addition on the Microstructure and Properties of a Heat-Affected Zone in Submerged Arc Welding of an Al-Killed Low Carbon Steel.MATERIALS,14(9),19.
MLA Li, Yandong,et al."Effect of Mg Addition on the Microstructure and Properties of a Heat-Affected Zone in Submerged Arc Welding of an Al-Killed Low Carbon Steel".MATERIALS 14.9(2021):19.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Yandong]'s Articles
[Xing, Weiwei]'s Articles
[Li, Xiaobing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Yandong]'s Articles
[Xing, Weiwei]'s Articles
[Li, Xiaobing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Yandong]'s Articles
[Xing, Weiwei]'s Articles
[Li, Xiaobing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.