Effects of pre-deformation and subsequent low-temperature annealing on transformation, mechanical properties and shape memory behavior of a Ti-rich TiNi alloy

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	Effects of pre-deformation and subsequent low-temperature annealing on transformation, mechanical properties and shape memory behavior of a Ti-rich TiNi alloy
	Y. Yan ; W. Jin ; X. W. Li ; J. Wang ; J. H. Liu
刊名	International Journal of Materials Research
	2011
卷号	102 期号:5 页码:550-555
关键词	Ti-rich TiNi alloy Pre-deformation Annealing Shape memory performance Phase transformation r-phase transformation martensitic-transformation ni alloys plastic-deformation at.percent-ni origin
ISSN号	1862-5282
中文摘要	Effects of pre-deformation in the martensitic state and subsequent low-temperature annealing on the phase transformation, tensile properties and shape memory performance of a Ti-49.8 at.% Ni alloy were investigated in order to improve mechanical and memory properties of the alloy. The results show that water quenching from 850 degrees C and subsequent annealing do not induce Ti-rich precipitates in the alloy. Transformation from parent to R-phase appears on cooling for alloys annealed at 350-500 degrees C after pre-deformed to the strain of as high as 19.0%, and the transformation temperature and rate from parent to R-phase are not affected by pre-deformation, but M(s) and M(f) reduce with increasing pre-deformation strain, and the volume fraction of R-phase increases in the microstructure of alloys annealed at low temperature after pre-deformation to higher strain. Tensile and memory properties of the Ti-49.8 at.% Ni alloy can be improved by appropriate pre-deformation (more than 27.8% strain) in the martensitic state and subsequent low-temperature annealing (at 400 degrees C).
原文出处	://WOS:000290973300009
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/30813]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Yan,W. Jin,X. W. Li,et al. Effects of pre-deformation and subsequent low-temperature annealing on transformation, mechanical properties and shape memory behavior of a Ti-rich TiNi alloy[J]. International Journal of Materials Research,2011,102(5):550-555.
APA	Y. Yan,W. Jin,X. W. Li,J. Wang,&J. H. Liu.(2011).Effects of pre-deformation and subsequent low-temperature annealing on transformation, mechanical properties and shape memory behavior of a Ti-rich TiNi alloy.International Journal of Materials Research,102(5),550-555.
MLA	Y. Yan,et al."Effects of pre-deformation and subsequent low-temperature annealing on transformation, mechanical properties and shape memory behavior of a Ti-rich TiNi alloy".International Journal of Materials Research 102.5(2011):550-555.