Preferred precipitation of ordered alpha(2) phase at dislocations and boundaries in near-alpha titanium alloys

IMR OpenIR

	Preferred precipitation of ordered alpha(2) phase at dislocations and boundaries in near-alpha titanium alloys
	Zhang, J ; Li, D
通讯作者	Zhang, J()
	2003-01-20
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	341 期号:1-2 页码:229-235
摘要	The 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.
关键词	precipitation aging temperature titanium alloys
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000179410000028
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：31[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/321006/117816
专题	中国科学院金属研究所
通讯作者	Zhang, J
作者单位	1.Shenyang Univ, Dept Mat Sci & Engn, Shenyang 110044, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Shenyang 110015, Peoples R China
推荐引用方式 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.