Nanosecond pulsed laser-assisted modified copper surface structure: Enhanced surface microhardness and microbial corrosion resistance

doi:10.1016/j.jmst.2021.08.023

CORC > 金属研究所 > 中国科学院金属研究所

	Nanosecond pulsed laser-assisted modified copper surface structure: Enhanced surface microhardness and microbial corrosion resistance
	Wei, Boxin 2,3; Xu, Jin 3; Gao, Liqun 3; Feng, Hui 3; Wu, Jiajun 1,4; Sun, Cheng 3; Wang, Zhenyao 3; Ke, Wei 3
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2022-04-30
卷号	107 页码:111-123
关键词	Pure copper Laser processing Microbiologically influenced corrosion Pitting Severe plastic deformation
ISSN号	1005-0302
DOI	10.1016/j.jmst.2021.08.023
通讯作者	Xu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn)
英文摘要	Microbiologically influenced corrosion (MIC) is an unavoidable problem in several industries. Copper (Cu) and its alloys are widely used engineering materials. However, MIC of Cu remains a persistent chal-lenge to their performance and functional lifetime under aggressive environments. This study investi-gated nanosecond pulsed laser processing (LP), which may enhance the corrosion resistance of Cu. The microstructural evolution and corrosion behavior of LP-Cu in the presence of sulfate-reducing bacteria (SRB) were evaluated. Typical deformation-induced microstructural features of high-density dislocations were analyzed on the top surface of LP-Cu coupon. Electrochemical measurements suggested that LP-Cu coupons exhibited better corrosion resistance in SRB-inoculated solution compared with their original counterpart. The enhanced corrosion resistance by LP primarily resulted from the combined influences of compressive residual stress and work hardening in the surface. However, overlap percentage played a key role in improving corrosion resistance. LP produced optimal corrosion resistance at 50% overlap. There-fore, this study introduces a unique and an option for anticorrosion control in manufacturing processes and potentially implements it onto other materials to improve its microbial corrosion resistance through LP. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Science Foundation of China[51871228] ; National Science Foundation of China[51771213] ; National Science Foundation of China[51471176]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000773329000004
资助机构	National Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173050]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu, Jin; Sun, Cheng
作者单位	1.Chinese Acad Sci, Shenyang Inst Automat, State Key Lab Robot, Shenyang 110169, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Liaoning Shenyang Soil & Atmosphere Mat Corros Na, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Robot, Shenyang 110169, Peoples R China
推荐引用方式 GB/T 7714	Wei, Boxin,Xu, Jin,Gao, Liqun,et al. Nanosecond pulsed laser-assisted modified copper surface structure: Enhanced surface microhardness and microbial corrosion resistance[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,107:111-123.
APA	Wei, Boxin.,Xu, Jin.,Gao, Liqun.,Feng, Hui.,Wu, Jiajun.,...&Ke, Wei.(2022).Nanosecond pulsed laser-assisted modified copper surface structure: Enhanced surface microhardness and microbial corrosion resistance.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,107,111-123.
MLA	Wei, Boxin,et al."Nanosecond pulsed laser-assisted modified copper surface structure: Enhanced surface microhardness and microbial corrosion resistance".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 107(2022):111-123.