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Effect of alloying elements on the precipitation of delta phase in Ni-Nb-Cr-Mo alloys
Hou, Jieshan1; Yang, Fei1; Wu, Yuxi2; Zhou, Lanzhang1
Corresponding AuthorHou, Jieshan(jshou@imr.ac.cn)
2019-05-15
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume785Pages:1038-1046
AbstractEffect 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.
KeywordNb-beared superalloy delta phase Multi-element Thermodynamic Artificial neural network
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.jallcom.2019.01.250
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51571191]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000460386900124
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/132382
Collection中国科学院金属研究所
Corresponding AuthorHou, Jieshan
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Anhui Univ Technol, Maanshan 243002, Peoples R China
Recommended Citation
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.
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