A thermo-mechanical treatment to improve the superelastic performances of biomedical Ti-26Nb and Ti-20Nb-6Zr (at.%) alloys

doi:10.1016/j.jmbbm.2011.06.003

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	A thermo-mechanical treatment to improve the superelastic performances of biomedical Ti-26Nb and Ti-20Nb-6Zr (at.%) alloys
	Sun, F.1,2; Hao, Y. L.3; Nowak, S.1; Gloriant, T.4; Laheurte, P.5; Prima, F.1
刊名	JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
	2011-11-01
卷号	4 期号:8 页码:1864-1872
关键词	Titanium alloys Thermo-mechanical treatment Superelasticity Microstructure Transmission electron microscopy
ISSN号	1751-6161
DOI	10.1016/j.jmbbm.2011.06.003
通讯作者	Prima, F.(fredericprima@chimie-paristech.fr)
英文摘要	A flash-thermal treatment technique has been developed very recently to improve both the critical stress to induce the martensitic transformation (MT) and the recoverable deformation of the metastable beta type titanium alloys. In this paper, this strategy is applied to both Ti-26Nb and Ti-20Nb-6Zr (at.%) alloys. Since both alloys have identical martensite start (Ms) temperature, it makes possible to investigate the effect of Zr on mechanical properties after the flash-thermal treatment. It is clearly shown that a flash treatment of 360 s at 873 K on heavily cold-rolled samples results in good balance between the tensile strength, the ductility and the recoverable strains. Such contribution is more significant in the ternary alloy in which balanced properties combining high martensitic critical stress over 400 MPa and the large fully recoverable strains up to 3.0% can be achieved. These improvements are due to the flash treatment effects, resulting in ultra-fine beta grains with sizes 1-2 mu m with nano-sized alpha and omega phases precipitation in the beta matrix. (C) 2011 Elsevier Ltd. All rights reserved.
资助项目	French National Research Agency[ANR 08MAPR 0017]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000298764700028
资助机构	French National Research Agency
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/105003]
专题	金属研究所_中国科学院金属研究所
通讯作者	Prima, F.
作者单位	1.ENSCP, Lab Physicochim Surfaces, Grp Met Struct, UMR 7045, F-75231 Paris 05, France 2.China Univ Geosci, Fac Mat Sci & Chem Engn, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.INSA Rennes, CNRS, UMR Sci Chim Rennes Chim Met 6226, F-35043 Rennes, France 5.Univ Metz, LETAM, CNRS, FRE 3143, Metz, France
推荐引用方式 GB/T 7714	Sun, F.,Hao, Y. L.,Nowak, S.,et al. A thermo-mechanical treatment to improve the superelastic performances of biomedical Ti-26Nb and Ti-20Nb-6Zr (at.%) alloys[J]. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,2011,4(8):1864-1872.
APA	Sun, F.,Hao, Y. L.,Nowak, S.,Gloriant, T.,Laheurte, P.,&Prima, F..(2011).A thermo-mechanical treatment to improve the superelastic performances of biomedical Ti-26Nb and Ti-20Nb-6Zr (at.%) alloys.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,4(8),1864-1872.
MLA	Sun, F.,et al."A thermo-mechanical treatment to improve the superelastic performances of biomedical Ti-26Nb and Ti-20Nb-6Zr (at.%) alloys".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 4.8(2011):1864-1872.