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

doi:10.1016/j.jallcom.2019.01.250

IMR OpenIR

	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
通讯作者	Hou, Jieshan(jshou@imr.ac.cn)
	2019-05-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	785 页码:1038-1046
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.
关键词	Nb-beared superalloy delta phase Multi-element Thermodynamic Artificial neural network
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jallcom.2019.01.250
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51571191]
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:000460386900124
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：5[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/321006/132385
专题	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.