Stress corrosion of HAZ subdivision of X80 pipeline steel in sterile high-sulfate soil

doi:10.1016/j.jmrt.2023.09.095

IMR OpenIR

	Stress corrosion of HAZ subdivision of X80 pipeline steel in sterile high-sulfate soil
	Yu, Youjun 1,2; Xu, Jin 3,4; Chai, Tingxi 1; Liu, Baixing 1; Sun, Cheng 3,4
通讯作者	Yu, Youjun(yyj2006lzq@163.com) ; Xu, Jin(xujin@imr.ac.cn)
	2023-09-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	26 页码:8229-8241
摘要	The welding heat affected zone (HAZ) is a high-risk region of corrosion, and influenced by multi-factors, such as stress, microbe and microstructure. Sulfate reducing bacteria (SRB) enhance the corrosion of the stressed HAZs, especially coarse-grained HAZ (CGHAZ). CGHAZ has least percentage of HAGBs, largest effective grain size, and highest volume fraction of MA island, which leads to the severer corrosion. SRB accelerate the localized corrosion of steel HAZs, and the maximum pitting depths of CGHAZ with and without SRB reach 9.97 and 7.65 mm, respectively. The elastic stress lowers the equilibrium potential and weakens the protective ability of film, which boosts the corrosion process, while SRB further enhance this accelerating effect of the stress on the corrosion.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	SRB induced corrosion Elastic stress X80 steel CGHAZ Saline soil
资助者	Natural Science Foundation of Gansu Province ; Talent Innovation and Entrepreneurship Project of Lanzhou City
DOI	10.1016/j.jmrt.2023.09.095
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Gansu Province[21JR7RA540] ; Talent Innovation and Entrepreneurship Project of Lanzhou City[2022-RC-35]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001088744300001
出版者	ELSEVIER
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178016
专题	中国科学院金属研究所
通讯作者	Yu, Youjun; Xu, Jin
作者单位	1.Lanzhou City Univ, Sch Bailie Mech Engn, Lanzhou 730070, Peoples R China 2.Gansu Welding Technol & Welding Qual Evaluat Engn, Lanzhou 730070, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Liaoning Shenyang Soil & Atmosphere Mat Corros Nat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yu, Youjun,Xu, Jin,Chai, Tingxi,et al. Stress corrosion of HAZ subdivision of X80 pipeline steel in sterile high-sulfate soil[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,26:8229-8241.
APA	Yu, Youjun,Xu, Jin,Chai, Tingxi,Liu, Baixing,&Sun, Cheng.(2023).Stress corrosion of HAZ subdivision of X80 pipeline steel in sterile high-sulfate soil.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,26,8229-8241.
MLA	Yu, Youjun,et al."Stress corrosion of HAZ subdivision of X80 pipeline steel in sterile high-sulfate soil".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 26(2023):8229-8241.