Effects of Nickel Content on High Temperature Coarsening of γ' Phase in Co-8.8Al-9.8W Alloys

doi:10.11896/j.issn.1005-023X.2018.06.016

	Effects of Nickel Content on High Temperature Coarsening of γ' Phase in Co-8.8Al-9.8W Alloys
	Xu, Yangtao1,2 ; Lou, Dechao 1,2; Chen, Baolin 1,2
	2018-03-25
发表期刊	Cailiao Daobao/Materials Review
ISSN	1005023X
卷号	32 期号:3 页码:943-946
摘要	The influence of nickel contents (5%, 15%, 25%, 35%, at%) on γ/γ' two-phase microstructure and γ' phase coarsening behavior of Co-8.8Al-9.8W based high temperature alloy at 1 000 for 5 h, 10 h, 15 h and 25 h was studied by field emission scanning electron microscope (FE-SEM) and image analysis method. The results show that the rapid growths of γ' phase and volume fraction of γ' phase decrease gradually with the increase of aging time. When Ni content is 5% and 15%, γ' phase completely dissolved at 10 h. When Ni content is 25% and 35%, the morphology of γ' phase shifted from initial cubic shape to irregular shape. Finally, it tend to be spherical, the size of γ' phase will also increase with the increase of aging time. The coarsening of γ' particles of the alloy follows LSW theory. The coarsening rate of 25Ni alloy is higher than that of 35Ni alloy. © 2018, Materials Review Magazine. All right reserved.
关键词	Coarsening Cobalt alloys Morphology Nickel Ostwald ripening Particle size analysis Scanning electron microscopy Ternary alloys Coarsening behavior Coarsening rates Field emission scanning electron microscopes High temperature Image analysis method Irregular shape Phase coarsening Two-phase microstructures
DOI	10.11896/j.issn.1005-023X.2018.06.016
收录类别	EI
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
EI入藏号	20184305970618
EI主题词	Aluminum alloys
EI分类号	531.2 Metallography - 541.1 Aluminum - 541.2 Aluminum Alloys - 548.1 Nickel - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 951 Materials Science
来源库	Compendex
分类代码	541.2 Aluminum Alloys - 548.1 Nickel - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114142
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	兰州理工大学; 材料科学与工程学院
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Xu, Yangtao,Lou, Dechao,Chen, Baolin. Effects of Nickel Content on High Temperature Coarsening of γ' Phase in Co-8.8Al-9.8W Alloys[J]. Cailiao Daobao/Materials Review,2018,32(3):943-946.
APA	Xu, Yangtao,Lou, Dechao,&Chen, Baolin.(2018).Effects of Nickel Content on High Temperature Coarsening of γ' Phase in Co-8.8Al-9.8W Alloys.Cailiao Daobao/Materials Review,32(3),943-946.
MLA	Xu, Yangtao,et al."Effects of Nickel Content on High Temperature Coarsening of γ' Phase in Co-8.8Al-9.8W Alloys".Cailiao Daobao/Materials Review 32.3(2018):943-946.