Effect of carbon and aging treatment on precipitation of ordered alpha(2) in Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd alloy

doi:10.1016/j.msea.2005.08.057

IMR OpenIR

	Effect of carbon and aging treatment on precipitation of ordered alpha(2) in Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd alloy
	Zhang, SZ ; Xu, HZ ; Li, GP ; Liu, YY ; Yang, R
通讯作者	Yang, R()
	2005-11-05
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	408 期号:1-2 页码:290-296
摘要	The effect of carbon and heat treatment on microstructural stability of a near-a titanium alloy Ti-5.6Al-4.8Sn-2Zr-1Mo-0,35Si-0.7Nd during high-temperature exposure was investigated. Aging leads to the precipitation of alpha(2) phase from a after both beta- and (alpha + beta)-solution treatment. The alpha(2) precipitates are uniformly distributed throughout the a matrix for alloys aged at 700 degrees C and 750 degrees C, but the precipitation is heterogeneous, preferring dislocations or other substructures during aging at 800 degrees C. Carbon has little effect on alpha(2) precipitation for fully lamellar microstructure because there is no partitioning of alloying elements. For bimodal microstructure with similar to 15% primary alpha (alpha(p)), however, increasing carbon addition reduces alpha(2) particle size and increases interparticle spacing in up after exposure at 700-800 degrees C for 168 h, reducing and delaying alpha(2)-related embrittlement. This effect is attributed to carbon decreasing the Al concentration of the up and increasing the partitioning of Al and Mo to the transformed beta. (c) 2005 Elsevier B.V. All rights reserved.
关键词	near-alpha titanium alloy ordering precipitation carbon addition aging treatment
DOI	10.1016/j.msea.2005.08.057
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:000233524700041
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：20[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/321006/82844
专题	中国科学院金属研究所
通讯作者	Yang, R
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China
推荐引用方式 GB/T 7714	Zhang, SZ,Xu, HZ,Li, GP,et al. Effect of carbon and aging treatment on precipitation of ordered alpha(2) in Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2005,408(1-2):290-296.
APA	Zhang, SZ,Xu, HZ,Li, GP,Liu, YY,&Yang, R.(2005).Effect of carbon and aging treatment on precipitation of ordered alpha(2) in Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,408(1-2),290-296.
MLA	Zhang, SZ,et al."Effect of carbon and aging treatment on precipitation of ordered alpha(2) in Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 408.1-2(2005):290-296.