Hot corrosion behaviors of 921A alloy and HVAF-sprayed Fe-based amorphous coating covered with KCl-ZnCl2 salts

doi:10.1007/s42243-023-01011-6

IMR OpenIR

	Hot corrosion behaviors of 921A alloy and HVAF-sprayed Fe-based amorphous coating covered with KCl-ZnCl2 salts
	Zhang, Hai-liang 1,2; Yang, Ling-xu 3; Wang, Qian 4; Wu, Jiang-tao 1,2; Zhang, Suo-de 1; Zeng, Chao-liu 3
通讯作者	Zhang, Suo-de(sdzhang@imr.ac.cn) ; Zeng, Chao-liu(clzeng@imr.ac.cn)
	2023-07-04
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
页码	13
摘要	Hot corrosion behaviors of the 921A alloy and Fe-based amorphous coating induced by KCl-10% ZnCl2 and KCl-55% ZnCl2 salts at 450 & DEG;C in air for 40 h were investigated. Results show that the 921A alloy suffers more serious corrosion damage than the coating and KCl-55% ZnCl2 salts are more corrosive than KCl-10% ZnCl2 salts. In the two salts, an Fe2O3 layer is formed on the 921A alloy surface, while an outer Fe-rich oxide layer and an inner Cr-rich oxide layer are formed on the surface of the coating. Moreover, a certain amount of metal chloride can be found at the oxide/alloy (coating) interface, which can be explained by "active oxidation". However, the corrosion resistance of the Fe-based amorphous coating did not achieve the desired results, probably because the intersplats in the coating serve as corrosion diffusing channels, which facilitate the corrosion damage rate. Nevertheless, the coating is still in amorphous state after hot corrosion exposure.
关键词	Hot corrosion Chloride deposit 921A alloy Fe-based amorphous coating Waste-to-energy plant
资助者	GuangDong Basic and Applied Basic Research Foundation
DOI	10.1007/s42243-023-01011-6
收录类别	SCI
语种	英语
资助项目	GuangDong Basic and Applied Basic Research Foundation[2020A1515110128]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001022477300001
出版者	SPRINGER
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.imr.ac.cn/handle/321006/178517
专题	中国科学院金属研究所
通讯作者	Zhang, Suo-de; Zeng, Chao-liu
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China 4.Univ Sci & Technol Liaoning, Sch Mat & Met, Anshan 114051, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hai-liang,Yang, Ling-xu,Wang, Qian,et al. Hot corrosion behaviors of 921A alloy and HVAF-sprayed Fe-based amorphous coating covered with KCl-ZnCl2 salts[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2023:13.
APA	Zhang, Hai-liang,Yang, Ling-xu,Wang, Qian,Wu, Jiang-tao,Zhang, Suo-de,&Zeng, Chao-liu.(2023).Hot corrosion behaviors of 921A alloy and HVAF-sprayed Fe-based amorphous coating covered with KCl-ZnCl2 salts.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,13.
MLA	Zhang, Hai-liang,et al."Hot corrosion behaviors of 921A alloy and HVAF-sprayed Fe-based amorphous coating covered with KCl-ZnCl2 salts".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2023):13.