Oxidation, hot corrosion, and interdiffusion behavior of NiAlTa coating by electro-spark deposition

doi:10.1007/s12598-024-03218-2

IMR OpenIR

	Oxidation, hot corrosion, and interdiffusion behavior of NiAlTa coating by electro-spark deposition
	Yang, Shuai 1,2,3; Gao, Si-Yang 1,2,3; Xue, Wei-Hai 1,2,3; Wu, Bi 1,2,3; Duan, De-Li 1,2,3
通讯作者	Gao, Si-Yang(sygao@imr.ac.cn) ; Duan, De-Li(duandl@imr.ac.cn)
	2025-03-18
发表期刊	RARE METALS
ISSN	1001-0521
页码	17
摘要	A novel NiAlTa blade tip protective coating is designed and its oxidation, hot corrosion, and interdiffusion with DD5 single-crystal superalloys are investigated. NiAlTa coatings exhibit low oxidation rates. The dragging effect of Ta on Al hinders the external diffusion of Al. Ta that accumulates at the Al2O3 grain boundaries reduces the internal diffusion of O by combining or reacting with it. NaCl aggravates the hot corrosion through self ustaining cycles of chlorination/oxidation. beta-NiAl phase fails first as a diffusion channel for the corrosive medium. Significant element interdiffusion occurs. An interdiffusion zone and a secondary reaction zone are formed. Interdiffusion changes the percentage of elements, causing a phase transition of the coating. The volume change caused by the phase transition induces bulging and cracking of the oxide film. Furthermore, the oxidation, hot corrosion, and interdiffusion mechanisms are discussed. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)NiAlTa(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)DD5(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic), NiAlTa(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).Ta(sic)Al(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)Al(sic)(sic)(sic)(sic).(sic)(sic), (sic)(sic)(sic)Al2O3(sic)(sic)(sic)(sic)Ta(sic)(sic)(sic)O(sic)(sic)(sic)(sic)(sic)(sic)O(sic)(sic)(sic)(sic).NaCl(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)/(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).beta-NiAl(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic).NiAlTa(sic)(sic)(sic)DD5(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)tau 1 - NiTaAl (sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic), NiAlTa(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).
关键词	NiAlTa coating Blade tip protective coating Oxidation Hot corrosion Interdiffusion
资助者	Strategic Priority Research Program of the Chinese Academy of Sciences
DOI	10.1007/s12598-024-03218-2
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences ; [XDB 047010204]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001447469100001
出版者	NONFERROUS METALS SOC CHINA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/192123
专题	中国科学院金属研究所
通讯作者	Gao, Si-Yang; Duan, De-Li
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Liaoning Key Lab Aeroengine Mat Tribol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang, Shuai,Gao, Si-Yang,Xue, Wei-Hai,et al. Oxidation, hot corrosion, and interdiffusion behavior of NiAlTa coating by electro-spark deposition[J]. RARE METALS,2025:17.
APA	Yang, Shuai,Gao, Si-Yang,Xue, Wei-Hai,Wu, Bi,&Duan, De-Li.(2025).Oxidation, hot corrosion, and interdiffusion behavior of NiAlTa coating by electro-spark deposition.RARE METALS,17.
MLA	Yang, Shuai,et al."Oxidation, hot corrosion, and interdiffusion behavior of NiAlTa coating by electro-spark deposition".RARE METALS (2025):17.