The formation of the complex oxide in Ni-based alloy powder during mechanical milling and heat treatment

doi:10.1016/j.jallcom.2021.160333

CORC > 金属研究所 > 中国科学院金属研究所

	The formation of the complex oxide in Ni-based alloy powder during mechanical milling and heat treatment
	Mao, Zhe 1,2,3; Xiong, Liangyin 1,2; Liu, Shi 1,2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-10-25
卷号	879 页码:7
关键词	Ni-based ODS alloy powder Mechanical milling Oxide particle Dissolution Precipitation
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.160333
通讯作者	Xiong, Liangyin(lyxiong@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn)
英文摘要	Ni-based oxide dispersion strengthening (ODS) alloys fabricated by mechanical alloying (MA) and hot isostatic pressing (HIP) improve mechanical properties by adding yttria as a dispersoid. The evolution of the additive Y2O3 particles was studied by scanning electron microscope (SEM) for the powder milled for 5 h, 20 h, 40 h, and the un-milling powder. The samples of powders after the mechanical milling and the heat treatment at 1175 degrees C for 3 h corresponding to HIP were observed by high-resolution transmission electron microscopes (HRTEM). In the process of the mechanical alloying, the Y2O3 crystallites underwent dispersion, dissolution, and partly transformed into YCrO3 and Y2Ti2O7 particles. A small amount of the complex oxide particles could be produced in the process of mechanical milling. A high number density of complex oxide particles precipitated and coarsened in the powder after the heat treatment. Mechanical milling could induce the formation of complex oxide particles because of their formation energies. The difference in size of YCrO3 and Y2Ti2O7 particles in the powder after the heat treatment mainly attribute to diffusion coefficient, solubility, and the interfacial energy. (C) 2021 Elsevier B.V. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000662786500003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160448]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xiong, Liangyin; Liu, Shi
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Mao, Zhe,Xiong, Liangyin,Liu, Shi. The formation of the complex oxide in Ni-based alloy powder during mechanical milling and heat treatment[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,879:7.
APA	Mao, Zhe,Xiong, Liangyin,&Liu, Shi.(2021).The formation of the complex oxide in Ni-based alloy powder during mechanical milling and heat treatment.JOURNAL OF ALLOYS AND COMPOUNDS,879,7.
MLA	Mao, Zhe,et al."The formation of the complex oxide in Ni-based alloy powder during mechanical milling and heat treatment".JOURNAL OF ALLOYS AND COMPOUNDS 879(2021):7.