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Dual effects of Ru on the microstructural stability of a single crystal superalloy
Sun, Jingxia1,2; Liu, Jinlai1; Li, Jinguo1; Chen, Chao1,2; Wang, Xinguang1; Zhou, Yizhou1; Sun, Xiaofeng1
Corresponding AuthorLiu, Jinlai(jlliu@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
2021-12-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume205Pages:4
AbstractGenerally, Ru can inhibit the precipitation of TCP phase in most single crystal superalloys. However, in this study, we found that the inhibition is related to the location in the exposed specimen relative to the specimen surface: Ru inhibits the precipitation of TCP phase inside the sample but promotes it in the near surface region. The promotion of the TCP phase was proven to be related to oxidation. Microstructural analysis suggested that Ru degrades the oxidation resistance by disturbing the barrier property of the oxide scale. More Ni atoms are consumed due to the poor oxidation, resulting in the concentration gradient toward the interior of the samples, which changes the driving force of TCP precipitation. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordTCP phases Microstructural stability Single crystal superalloy Thermal exposure Oxidation property
Funding OrganizationNational Science and Tech-nology Major Project ; National Key Re-search and Development Program of China ; National Natural Science Foundation of China
DOI10.1016/j.scriptamat.2021.114209
Indexed BySCI
Language英语
Funding ProjectNational Science and Tech-nology Major Project[2017-VI-0 0 02-0 072] ; National Key Re-search and Development Program of China[2017YFA0700704] ; National Natural Science Foundation of China[51971214]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000693176900003
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166900
Collection中国科学院金属研究所
Corresponding AuthorLiu, Jinlai; Li, Jinguo
Affiliation1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Sun, Jingxia,Liu, Jinlai,Li, Jinguo,et al. Dual effects of Ru on the microstructural stability of a single crystal superalloy[J]. SCRIPTA MATERIALIA,2021,205:4.
APA Sun, Jingxia.,Liu, Jinlai.,Li, Jinguo.,Chen, Chao.,Wang, Xinguang.,...&Sun, Xiaofeng.(2021).Dual effects of Ru on the microstructural stability of a single crystal superalloy.SCRIPTA MATERIALIA,205,4.
MLA Sun, Jingxia,et al."Dual effects of Ru on the microstructural stability of a single crystal superalloy".SCRIPTA MATERIALIA 205(2021):4.
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