Journal Article10.1016/J.ACTAMAT.2007.10.020
Effect of ageing treatment on the transformation behaviour of Ti–50.9 at.% Ni alloy
TL;DR: This article investigated the effect of ageing on the transformation behavior of a Ti-509% at% Ni alloy and found that aging at below 573 k was found to suppress the original A-↔-M transformation.
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About: This article is published in Acta Materialia. The article was published on 01 Feb 2008. The article focuses on the topics: Grain boundary.
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Citations
Wire and arc additive manufacturing of a Ni-rich NiTi shape memory alloy: microstructure and mechanical properties
Zhi Zeng,B.Q. Cong,João Pedro Oliveira,W.C. Ke,N. Schell,B. Peng,Z.W. Qi,F.G Ge,Wei Zhang,Sansan Ao +9 more
TL;DR: In this paper, the as-built NiTi microstructure changed from collumnar, in the first deposited layers, to equiaxed in the last deposited ones as a result of different thermal cycle conditions.
191
Texture, aging, and superelasticity of selective laser melting fabricated Ni-rich NiTi alloys
Soheil Saedi,A.S. Turabi,Mohsen Taheri Andani,Mohsen Taheri Andani,Narges Shayesteh Moghaddam,Mohammad Elahinia,Haluk E. Karaca +6 more
TL;DR: In this paper, the impact of selective laser melting (SLM) fabrication on the microstructure and texture of Ni-rich NiTi alloy was investigated. And a comprehensive aging study was also presented to reveal the effects of aging time and temperature on transformation behavior.
186
Stable tensile recovery strain induced by a Ni4Ti3 nanoprecipitate in a Ni50.4Ti49.6 shape memory alloy fabricated via selective laser melting
TL;DR: In this article, the authors reported a stable tensile recovery strain induced by a Ni4Ti3 nanoprecipitate in a Ni50.4Ti49.6 shape memory alloy (SMA) fabricated via selective laser melting (SLM), followed by a discussion on the underlying physical mechanism.
154
Effect of nanoprecipitates on the transformation behavior and functional properties of a Ti–50.8 at.% Ni alloy with micron-sized grains
TL;DR: In this paper, a nanoscaled Ni 4 Ti 3 precipitates are introduced in a Ti-50.8% Ni alloy with micron-sized grains (average grain size of 1.7μm).
138
R-phase transformation in NiTi alloys
TL;DR: In this article, the effects of different thermomechanical treatments on the R-phase transformation of NiTi alloys have been reviewed, and recent work on controlling the R phase transformation temperature by low temperature aging treatments is summarized.
119
References
Physical metallurgy of Ti–Ni-based shape memory alloys
Kazuhiro Otsuka,Xiaobing Ren +1 more
TL;DR: In this article, a selfconsistent and logical account of key issues on Ti-Ni-based alloys from physical metallurgy viewpoint on an up-to-date basis is presented.
4.2K
Ni4Ti3-precipitation during aging of NiTi shape memory alloys and its influence on martensitic phase transformations
TL;DR: In this paper, the microstructure of a Ni-rich NiTi shape memory alloy and its influence on the thermal characteristics of martensitic transformations were studied. But the authors did not consider the effect of stress on the precipitation process of Ni4Ti3-precipitates.
673
Development of Shape Memory Alloys
Shuichi Miyazaki,Kazuhiro Otsuka +1 more
TL;DR: In this article, the shape memory effect and shape memory mechanisms are discussed on the basis of the crystal structure and the crystallography of the martensitic transformations of shape memory alloys.
499
Precipitation processes in near-equiatomic TiNi shape memory alloys
TL;DR: In this paper, the eutectoid and peritectoid reactions were not observed for near-equiatomic and Ni-rich TiNi alloys, and the precipitation sequence can be written asβ 0 → Ti11Ni14 → Ti2Ni3 → TiNi3.
457
Origin of abnormal multi-stage martensitic transformation behavior in aged Ni-rich Ti–Ni shape memory alloys
TL;DR: In this article, the authors made a comparative study between single crystals and corresponding polycrystals and found that all single crystals exhibit normal two-stage transformation, being independent of Ni content.
268