Corrosion Behavior of GH4169 Alloy in NaCl Solution Spray Environment at 600&deg;C

doi:10.11900/0412.1961.2022.00204

IMR OpenIR

	Corrosion Behavior of GH4169 Alloy in NaCl Solution Spray Environment at 600°C
	Zhang Weidong 1; Cui Yu 2; Liu Li 1; Wang Wenquan 1; Liu Rui 1; Li Rui 1; Wang Fuhui 1
通讯作者	Cui Yu(ycui@imr.ac.cn) ; Liu Li(liuli@mail.neu.edu.cn)
	2023-11-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	59 期号:11 页码:1475-1486
摘要	The corrosion behavior of engine materials of airplanes working in marine environments is accelerated by the synergistic effects of NaCl particles and water vapor at high temperatures. This work examined the corrosion behavior of GH4169 alloy with a NaCl solution spraying at 600 degrees C using an oxidation kinetics test and micro characterization technology in the aspects of corrosion kinetics, corrosion layer phase composition, and microstructure. The weight gain of the GH4169 alloy corroded in the NaCl solution spraying environment was much lower than that in solid NaCl + wet O-2 after 20 h corrosion at 600 degrees C. The corrosion products of the GH4169 alloy in the NaCl solution spray environment were less complex than those in the solid NaCl + wet O-2 environment, but they were denser. In addition, Cl was concentrated in the inner layer of the corrosion products and accelerated the corrosion of GH4169 alloy via an "active oxidation" mechanism at the initial stage. When NaCl deposition was increased, the corrosion mechanism of GH4169 alloy changed gradually to Cl-induced "active oxidation." The sensitivity of GH4169 alloy in the NaCl solution spray environment at 600 degrees C was analyzed. Overall, the sensitivity of elements in GH4169 alloy to chlorine activated corrosion was Ti > Al > Nb, Cr > Fe > Mo, Ni, whereas the sensitivity of the oxides was TiO2 > MoO2 > Cr2O3(Nb2O5) > Fe2O3 > Al2O3 > NiO.
关键词	GH4169 alloy NaCl solution spray sensitivity of alloy element
资助者	Key Projects of Enterprise Innovation Joint Fund of National Natural Science Fundation of China
DOI	10.11900/0412.1961.2022.00204
收录类别	SCI
语种	英语
资助项目	Key Projects of Enterprise Innovation Joint Fund of National Natural Science Fundation of China
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001087007400007
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177771
专题	中国科学院金属研究所
通讯作者	Cui Yu; Liu Li
作者单位	1.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang Weidong,Cui Yu,Liu Li,et al. Corrosion Behavior of GH4169 Alloy in NaCl Solution Spray Environment at 600°C[J]. ACTA METALLURGICA SINICA,2023,59(11):1475-1486.
APA	Zhang Weidong.,Cui Yu.,Liu Li.,Wang Wenquan.,Liu Rui.,...&Wang Fuhui.(2023).Corrosion Behavior of GH4169 Alloy in NaCl Solution Spray Environment at 600°C.ACTA METALLURGICA SINICA,59(11),1475-1486.
MLA	Zhang Weidong,et al."Corrosion Behavior of GH4169 Alloy in NaCl Solution Spray Environment at 600°C".ACTA METALLURGICA SINICA 59.11(2023):1475-1486.