High temperature oxidation behavior and mechanism of a new Ni-Co-based superalloy

doi:10.1016/j.vacuum.2021.110219

IMR OpenIR

	High temperature oxidation behavior and mechanism of a new Ni-Co-based superalloy
	Zhuang, Xinpeng 1,2; Tan, Yi 1,2; You, Xiaogang 1,2,3; Li, Pengting 1,2; Zhao, Longhai 1,2; Cui, Chuanyong 4; Zhang, Huixing 1,2; Cui, Hongyang 1,2
通讯作者	You, Xiaogang(youxiaogang1990@163.com)
	2021-07-01
发表期刊	VACUUM
ISSN	0042-207X
卷号	189 页码:9
摘要	The oxidation behavior and mechanism of a new Ni-Co-based superalloy developed for advanced engine turbine disks, were investigated at various temperature for different exposure times. The isothermal oxidation experiments, scanning electron microscope (SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD) and electron probe microanalysis (EPMA) were employed to analyze the oxidation characteristics of the new Ni-Cobased superalloy. The results show that the oxidation kinetics can be described by a parabolic law at each temperature and the oxidation rate constants K at temperature of 800 degrees C, 900 degrees C and 1000 degrees C are 0.015, 0.033 and 0.138 mg(2) cm(-4) h(-1), respectively. The oxidation process is controlled by out-diffusion of metallic elements and in-diffusion of oxygen. Multifarious oxides are formed on the surface of the alloy due to the complex alloying elements. The oxide scale is consisted of three parts: the external oxide layer containing TiO2 and a small amount of Cr2O3; the middle oxide layer consisted of Cr2O3, TiO2, Al2O3 and the spinel phase; the internal oxide layer comprised of Al2O3. With further oxidation, TiO2 accumulates gradually on the external oxide layer because of the large diffusion distance of Ti, while O penetrated into the matrix can be captured by Al to prevent the further diffusion into alloy interior.
关键词	Ni-Co-based superalloy Oxidation behavior Oxide layer Oxidation mechanism
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China
DOI	10.1016/j.vacuum.2021.110219
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2019YFA0705303] ; National Natural Science Foundation of China[91860123] ; National Natural Science Foundation of China[51974057] ; National Natural Science Foundation of China[52004051]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000663207000002
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/160454
专题	中国科学院金属研究所
通讯作者	You, Xiaogang
作者单位	1.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Mat Modificat Laser Ion & Electron Beams, Minist Educ, Dalian 116024, Peoples R China 2.Key Lab Energy Beam Met & Adv Mat Preparat Liaoni, Dalian 116024, Peoples R China 3.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhuang, Xinpeng,Tan, Yi,You, Xiaogang,et al. High temperature oxidation behavior and mechanism of a new Ni-Co-based superalloy[J]. VACUUM,2021,189:9.
APA	Zhuang, Xinpeng.,Tan, Yi.,You, Xiaogang.,Li, Pengting.,Zhao, Longhai.,...&Cui, Hongyang.(2021).High temperature oxidation behavior and mechanism of a new Ni-Co-based superalloy.VACUUM,189,9.
MLA	Zhuang, Xinpeng,et al."High temperature oxidation behavior and mechanism of a new Ni-Co-based superalloy".VACUUM 189(2021):9.