Effect of alloying elements on the precipitation of delta phase in Ni-Nb-Cr-Mo alloys

doi:10.1016/j.jallcom.2019.01.250

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of alloying elements on the precipitation of delta phase in Ni-Nb-Cr-Mo alloys
	Hou, Jieshan 1; Yang, Fei 1; Wu, Yuxi 2; Zhou, Lanzhang 1
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2019-05-15
卷号	785 页码:1038-1046
关键词	Nb-beared superalloy delta phase Multi-element Thermodynamic Artificial neural network
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2019.01.250
通讯作者	Hou, Jieshan(jshou@imr.ac.cn)
英文摘要	Effect of alloying elements on precipitation of delta phase in Ni-Nb-Cr-Mo alloys has been studied using thermodynamic method. It is found that an increase of Al/Ti ratio or (Al+Ti) content will inhibit the precipitation of delta phase obviously. When the Al/Ti ratio (exceed 1) or (Al+Ti) content increases, Nb content in delta phase increases, while the Mo content decreases. The mole fraction of delta phase increases obviously with increase of Nb content, however, it is nearly not affected by B content. Artificial neural network (ANN) method is tentatively applied to predict the multielement additions on mechanical properties in these alloys. A suitable composition of Al, Ti and B is suggested which obviously promotes stress-rupture life. The theoretical simulation results are finally verified through experiments. (C) 2019 Published by Elsevier B.V.
资助项目	National Natural Science Foundation of China[51571191]
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:000460386900124
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132386]
专题	金属研究所_中国科学院金属研究所
通讯作者	Hou, Jieshan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Anhui Univ Technol, Maanshan 243002, Peoples R China
推荐引用方式 GB/T 7714	Hou, Jieshan,Yang, Fei,Wu, Yuxi,et al. Effect of alloying elements on the precipitation of delta phase in Ni-Nb-Cr-Mo alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,785:1038-1046.
APA	Hou, Jieshan,Yang, Fei,Wu, Yuxi,&Zhou, Lanzhang.(2019).Effect of alloying elements on the precipitation of delta phase in Ni-Nb-Cr-Mo alloys.JOURNAL OF ALLOYS AND COMPOUNDS,785,1038-1046.
MLA	Hou, Jieshan,et al."Effect of alloying elements on the precipitation of delta phase in Ni-Nb-Cr-Mo alloys".JOURNAL OF ALLOYS AND COMPOUNDS 785(2019):1038-1046.