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Corrosion Behavior of GH4169 Alloy in NaCl Solution Spray Environment at 600°C

文献类型：期刊论文

作者Zhang Weidong1; Cui Yu2; Liu Li1; Wang Wenquan1; Liu Rui1; Li Rui1; Wang Fuhui1
刊名ACTA METALLURGICA SINICA
出版日期2023-11-11
卷号59期号:11页码:1475-1486
关键词GH4169 alloy NaCl solution spray sensitivity of alloy element
ISSN号0412-1961
DOI10.11900/0412.1961.2022.00204
通讯作者Cui Yu(ycui@imr.ac.cn) ; Liu Li(liuli@mail.neu.edu.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:001087007400007
出版者SCIENCE PRESS
资助机构Key Projects of Enterprise Innovation Joint Fund of National Natural Science Fundation of China
源URL[http://ir.imr.ac.cn/handle/321006/177770]  
专题金属研究所_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.

入库方式： OAI收割

来源：金属研究所

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