Dual effects of Ru on the microstructural stability of a single crystal superalloy

doi:10.1016/j.scriptamat.2021.114209

CORC > 金属研究所 > 中国科学院金属研究所

	Dual effects of Ru on the microstructural stability of a single crystal superalloy
	Sun, Jingxia 1,2; Liu, Jinlai 1; Li, Jinguo 1; Chen, Chao 1,2; Wang, Xinguang 1; Zhou, Yizhou 1; Sun, Xiaofeng 1
刊名	SCRIPTA MATERIALIA
	2021-12-01
卷号	205 页码:4
关键词	TCP phases Microstructural stability Single crystal superalloy Thermal exposure Oxidation property
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2021.114209
通讯作者	Liu, Jinlai(jlliu@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
英文摘要	Generally, 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.
资助项目	National 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研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000693176900003
资助机构	National Science and Tech-nology Major Project ; National Key Re-search and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/166899]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Jinlai; Li, Jinguo
作者单位	1.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
推荐引用方式 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.