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Preferred precipitation of ordered alpha(2) phase at dislocations and boundaries in near-alpha titanium alloys
Zhang, J; Li, D
Corresponding AuthorZhang, J()
2003-01-20
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume341Issue:1-2Pages:229-235
AbstractThe precipitation Of alpha(2) ordered phase in different aging conditions after solution treatment in beta, high alpha + beta, or alpha phase field in TiAl-Sn-Zr-Mo-Si-Nd (1#) and Ti-Al-Sn-Zr-Mo-Si-Nd-Nb (2#) near-alpha titanium alloys was investigated. The solution-treated microstructures consisted of either a single transformed beta phase (beta(1)), a duplex mixture of the primary alpha phase (alpha(p)) and transformed beta phase (beta(1)), or a single primary alpha phase (alpha(1)). The precipitation characteristics Of alpha(2) phase was determined as a function of aging temperature. When the aging temperature was high enough, the precipitation Of alpha(2) phase occurred predominately at the boundaries and the dislocations, instead of being uniform throughout the beta(t), matrix. The precipitation Of alpha(2) phase in alpha(p), however, was relatively uniform. No apparent difference in the size Of alpha(2) particles was observed. When the aging temperature decreased, the precipitation Of alpha(2) phase became relatively uniform in beta(t), but the preferred precipitation and growth Of alpha(2) phase at boundaries and dislocations was still obvious. When the temperature was sufficiently low, the precipitation Of alpha(2) phase was homogeneous at the boundaries and dislocations as well as throughout the primary alpha phase and transformed beta phase matrix. (C) 2002 Elsevier Science B.V. All rights reserved.
Keywordprecipitation aging temperature titanium alloys
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000179410000028
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/117816
Collection中国科学院金属研究所
Corresponding AuthorZhang, J
Affiliation1.Shenyang Univ, Dept Mat Sci & Engn, Shenyang 110044, Peoples R China
2.Chinese Acad Sci, Met Res Inst, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Zhang, J,Li, D. Preferred precipitation of ordered alpha(2) phase at dislocations and boundaries in near-alpha titanium alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2003,341(1-2):229-235.
APA Zhang, J,&Li, D.(2003).Preferred precipitation of ordered alpha(2) phase at dislocations and boundaries in near-alpha titanium alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,341(1-2),229-235.
MLA Zhang, J,et al."Preferred precipitation of ordered alpha(2) phase at dislocations and boundaries in near-alpha titanium alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 341.1-2(2003):229-235.
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