Effect of Al content on in-situ formation of Al2O3 protective layer on Ni-Al coatings in high-temperature chloride molten salt

doi:10.1016/j.matlet.2024.136300

	Effect of Al content on in-situ formation of Al2O3 protective layer on Ni-Al coatings in high-temperature chloride molten salt
	Xu, Shipeng 1,2; Zheng, Yuehong1 ; Zhan, Faqi1 ; La, Peiqing1
	2024-06
发表期刊	Materials Letters
ISSN	0167-577X
卷号	364
摘要	The microstructure, strength, toughness, and resistance to chloride molten salt corrosion of Ni-Al coatings with varying Al content were investigated. Increasing the Al content from 9.9 to 61.1 at.% resulted in a decrease in adhesion strength and toughness, while an increase in corrosion rate. Contrary to previous reports, it is noteworthy that Ni-Al coatings with the lowest Al content exhibited superior resistance corrosion due to the formation of an oxidation layer which effectively blocked corrosion. This protective layer was primarily in-situ formed through the reaction between crystalline water present in the molten salt and an appropriate amount of Al. The balance between Al and O content is precisely regulated, resulting in the in-situ formation of Al2O3 protective. © 2024 Elsevier B.V.
关键词	Alumina Aluminum alloys Aluminum coatings Aluminum corrosion Binary alloys Chlorine compounds Corrosion rate Corrosion resistance Corrosion resistant coatings Fused salts High temperature corrosion Al content Highest temperature In-situ formations Molten salt Molten salt corrosion Ni-al coatings Oxidation layers Protective layers Strength and toughness Superior resistance
DOI	10.1016/j.matlet.2024.136300
收录类别	EI
语种	英语
出版者	Elsevier B.V.
EI入藏号	20241315807458
EI主题词	Aluminum oxide
EI分类号	539.1 Metals Corrosion ; 539.2 Corrosion Protection ; 541.1 Aluminum ; 541.2 Aluminum Alloys ; 804.2 Inorganic Compounds ; 813.2 Coating Materials
原始文献类型	Journal article (JA)
EISSN	1873-4979
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/170292
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
通讯作者	Zhan, Faqi
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Gansu Key Laboratory of Solar Power System Engineering, Jiuquan Vocational and Technical College, Jiuquan; 735000, China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Xu, Shipeng,Zheng, Yuehong,Zhan, Faqi,et al. Effect of Al content on in-situ formation of Al2O3 protective layer on Ni-Al coatings in high-temperature chloride molten salt[J]. Materials Letters,2024,364.
APA	Xu, Shipeng,Zheng, Yuehong,Zhan, Faqi,&La, Peiqing.(2024).Effect of Al content on in-situ formation of Al2O3 protective layer on Ni-Al coatings in high-temperature chloride molten salt.Materials Letters,364.
MLA	Xu, Shipeng,et al."Effect of Al content on in-situ formation of Al2O3 protective layer on Ni-Al coatings in high-temperature chloride molten salt".Materials Letters 364(2024).