Revealing internal corrosion of GH4169 with stress coupled solid NaCl deposited in a humid environment of 600? | |
| Wang, Wenquan1; Cui, Yu2; Liu, Rui1; Liu, Li1; Wang, Fuhui1 | |
| Corresponding Author | Liu, Li(liuli@mail.neu.edu.cn) |
| 2022-02-01 | |
| Source Publication | CORROSION SCIENCE
 |
| ISSN | 0010-938X |
| Volume | 195Pages:13 |
| Abstract | NaCl-deposited specimens of Ni-based superalloy GH4169 have been corroded in a humid environment of 600 ? with elastic stress applied by four-point bending testing. A stress-promoted "active oxidation " mechanism at the internal corrosion zone promotes deeper internal corrosion in an exponential form with external stress. Stress and Cl synergistically change the single corrosion product of Cr2O3 to mixed Cr2O3 and Fe2O3 at internal corrosion tips. Because of increased oxygen vacancy, more oxygen diffuses inward to the internal corrosion zone. Gathered Cl induced by stress participates in the reaction circularly and corrodes metals, leading to the propagation of internal corrosion. |
| Keyword | High-temperature corrosion Internal corrosion Elastic stress |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.corsci.2021.110004 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[U20B2026] ; National Natural Science Foundation of China[51871049] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000781381000002 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/172798 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Li |
| Affiliation | 1.Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Wenhua Rd 72, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 |
Wang, Wenquan,Cui, Yu,Liu, Rui,et al. Revealing internal corrosion of GH4169 with stress coupled solid NaCl deposited in a humid environment of 600? [J]. CORROSION SCIENCE,2022,195:13. |
| APA |
Wang, Wenquan,Cui, Yu,Liu, Rui,Liu, Li,&Wang, Fuhui.(2022). Revealing internal corrosion of GH4169 with stress coupled solid NaCl deposited in a humid environment of 600? .CORROSION SCIENCE,195,13. |
| MLA |
Wang, Wenquan,et al." Revealing internal corrosion of GH4169 with stress coupled solid NaCl deposited in a humid environment of 600? ".CORROSION SCIENCE 195(2022):13. |
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