Corrosion protection performance of stretched graphene-modified cold-sprayed zinc coating for steel rebar

doi:10.1016/j.istruc.2024.107173

	Corrosion protection performance of stretched graphene-modified cold-sprayed zinc coating for steel rebar
	Li, Peng 1,2,3; Fan, Liang 3; Shen, Wei 1; Wang, Fei 1
	2024-10-01
发表期刊	STRUCTURES
ISSN	2352-0124
卷号	68 页码:20
通讯作者	Fan, Liang([email protected]) ; Shen, Wei([email protected])
摘要	The cold-sprayed zinc technology exhibits unique advantages in the field of metal corrosion prevention due to its environmental friendliness and convenient construction. However, compared to hot-dip galvanizing, there is still a necessity to improve its corrosion resistance. Graphene as a filler material, effectively strengthens the anticorrosive properties of the coating. Nevertheless, the resistance of graphene-modified cold-sprayed zinc coating to chloride ion induced metal corrosion remains unknown. In this study, cold-sprayed zinc coating and graphenemodified zinc coating were employed to steel rebar that was subjected to different levels of tensile stress. The passivation and de-passivation process of the stretched zinc-coated rebar in the simulated concrete pore solution were investigated with electrochemical tests and microscopic analyses. The research findings reveal that compared with ordinary cold-sprayed zinc coating, graphene-modified coating can significantly improve the coating resistance and reduce the corrosion rate of rebar under different levels of tensile stress attributed to the high surface area of graphene. However, due to the discontinuity between zinc powders induced by graphene, a complete passivation film cannot form on the surface of graphene-modified zinc coating, which resulted in a lower resistance against chloride ion induced de-passivation. This study indicates that graphene-modified coldsprayed zinc-coating is not fit for marine environment.
关键词	Cold-sprayed Graphene-modified zinc coating Passivation and de-passivation performance Tensile stress
DOI	10.1016/j.istruc.2024.107173
收录类别	SCI
语种	英语
资助项目	Qingdao Natural Science Foundation Program[23-2-1-94-zyyd-jch]; Guangxi Science and Technology Major Project[AA23023018]; Guangxi Science &Technology Bases and Talents Special Program[Guike AA23026007]; Taishan Scholars Program, Shandong Natural Science Foundation Youth Program[ZR2023QE015]; Shandong Excellent Youth Science Foundation Program[2023HWYQ-100]
WOS研究方向	Engineering
WOS类目	Engineering, Civil
WOS记录号	WOS:001312873400001
出版者	ELSEVIER SCIENCE INC
WOS关键词	GALVANIZED STEEL ; CARBON-STEEL ; MILD-STEEL ; CONCRETE ; RESISTANCES ; BEHAVIOR
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/198680
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Fan, Liang; Shen, Wei
作者单位	1.Guangxi Univ, Sch Civil Engn & Architecture, State Key Lab Featured Met Mat & Life Cycle Safety, Nanning 530004, Peoples R China 2.Guangxi Acad Sci, Guangxi Key Lab Marine Environm Sci, Nanning 530007, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Li, Peng,Fan, Liang,Shen, Wei,et al. Corrosion protection performance of stretched graphene-modified cold-sprayed zinc coating for steel rebar[J]. STRUCTURES,2024,68:20.
APA	Li, Peng,Fan, Liang,Shen, Wei,&Wang, Fei.(2024).Corrosion protection performance of stretched graphene-modified cold-sprayed zinc coating for steel rebar.STRUCTURES,68,20.
MLA	Li, Peng,et al."Corrosion protection performance of stretched graphene-modified cold-sprayed zinc coating for steel rebar".STRUCTURES 68(2024):20.