Hot Corrosion Behavior of Hf-Doped NiAl Coating in the Mixed Salt of Na_2SO_4 + K_2SO_4 at 900 °C

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	Hot Corrosion Behavior of Hf-Doped NiAl Coating in the Mixed Salt of Na_2SO_4 + K_2SO_4 at 900 °C
	Zhang W L 1; Li W 1; Fu L B 1; Peng X 1; Sun J 2; Jiang S M 1; Gong J 1; Sun C 1
	2023
发表期刊	ACTA METALLURGICA SINICA(ENGLISH LETTERS)
ISSN	1006-7191
卷号	36 期号:9 页码:1409-1420
摘要	The hot corrosion behavior of the NiAl coating and the 5Hf-NiAl coating induced by mixed salt at 900 °C was investigated.Comparing with the NiAl coating,the 5Hf-NiAl coating exhibited superior hot corrosion resistance because the addition of Hf promoted the formation of protective oxide scale and reduced the growth rate of oxide scale.Therefore,internal sulfides were not present in the 5Hf-NiAl coating after hot corrosion for 140 h.Cr exhibited different distribution in the two coatings since the addition of Hf changed the hot corrosion process of the coating.Hf and Ti in the 5Hf-NiAl coating trapped and captured sulfur,preventing the penetration of sulfur into the coating.The hot corrosion mechanism of the two coating and the effects of Hf on this process were discussed in this work.
关键词	Hot corrosion Hafnium Oxide scale Titanium Sulfide
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177325
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.马来西亚工艺大学
推荐引用方式 GB/T 7714	Zhang W L,Li W,Fu L B,et al. Hot Corrosion Behavior of Hf-Doped NiAl Coating in the Mixed Salt of Na_2SO_4 + K_2SO_4 at 900 °C[J]. ACTA METALLURGICA SINICA(ENGLISH LETTERS),2023,36(9):1409-1420.
APA	Zhang W L.,Li W.,Fu L B.,Peng X.,Sun J.,...&Sun C.(2023).Hot Corrosion Behavior of Hf-Doped NiAl Coating in the Mixed Salt of Na_2SO_4 + K_2SO_4 at 900 °C.ACTA METALLURGICA SINICA(ENGLISH LETTERS),36(9),1409-1420.
MLA	Zhang W L,et al."Hot Corrosion Behavior of Hf-Doped NiAl Coating in the Mixed Salt of Na_2SO_4 + K_2SO_4 at 900 °C".ACTA METALLURGICA SINICA(ENGLISH LETTERS) 36.9(2023):1409-1420.