High temperature oxidation behavior of a Ni-Co-based superalloy

doi:10.1016/j.intermet.2024.108388

IMR OpenIR

	High temperature oxidation behavior of a Ni-Co-based superalloy
	Gai, Yongchao 1,2; Zhang, Rui 2; Cui, Chuanyong 2; Zhou, Zijian 2; Tan, Yi 1; Zhou, Yizhou 2; Sun, Xiaofeng 2
通讯作者	Zhang, Rui(rzhang@imr.ac.cn) ; Cui, Chuanyong(chycui@imr.ac.cn)
	2024-09-01
发表期刊	INTERMETALLICS
ISSN	0966-9795
卷号	172 页码:11
摘要	Oxidation behavior of a Ni-Co-based superalloy prepared by vacuum induction melting (VIM) plus electron beam smelting layered solidification technology (EBSL) and VIM plus electro slag remelting (ESR) at 1180 degrees C was investigated. The predominant oxides from the outer layer to the inner layer are TiO 2 , Cr 2 O 3 , (Al, Ti) -rich oxide and Al 2 O 3 , respectively. The (Al, Ti) -rich oxide is considered to be Al 2 Ti 4 O 9 , which is formed by TiO 2 and Al 2 O 3 . At high temperature, the external oxides experienced significant spalling, particularly in ESR-alloy, which indicated that the EBSL-alloy is more preferable in terms of oxidation resistance. This can be attributed to the presence of finer grains in EBSL-alloy, which facilitates the diffusion of elements and promotes the rapid formation of oxidation scales on the surface of the alloy. Additionally, the presence of a TiO 2 layer cover on Cr 2 O 3 reduces the degree of spalling of oxides in EBSL-alloy.
关键词	Ni-Co-Based superalloy Electron beam smelting Oxidation behavior Oxidation mechanism
资助者	National Key R & D Program of China ; National Science and Technology Major Project ; Youth Innovation Promotion Association, CAS ; Natural Science Foun- dation Project of Liaoning Province
DOI	10.1016/j.intermet.2024.108388
收录类别	SCI
语种	英语
资助项目	National Key R & D Program of China[2019YFA0705300] ; National Science and Technology Major Project[J2019 -VI -0006-0120] ; Youth Innovation Promotion Association, CAS[2023202] ; Natural Science Foun- dation Project of Liaoning Province[2023 -MS -024]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001261006300001
出版者	ELSEVIER SCI LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187783
专题	中国科学院金属研究所
通讯作者	Zhang, Rui; Cui, Chuanyong
作者单位	1.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, 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	Gai, Yongchao,Zhang, Rui,Cui, Chuanyong,et al. High temperature oxidation behavior of a Ni-Co-based superalloy[J]. INTERMETALLICS,2024,172:11.
APA	Gai, Yongchao.,Zhang, Rui.,Cui, Chuanyong.,Zhou, Zijian.,Tan, Yi.,...&Sun, Xiaofeng.(2024).High temperature oxidation behavior of a Ni-Co-based superalloy.INTERMETALLICS,172,11.
MLA	Gai, Yongchao,et al."High temperature oxidation behavior of a Ni-Co-based superalloy".INTERMETALLICS 172(2024):11.