Journal ArticleDOI
The crystallography of the martensitic transformation in equiatomic nickel-titanium
Kevin M. Knowles,D.A. Smith +1 more
TLDR
In this article, the phenomenological theory of martensitic transformations is applied to the various observed transformation modes in the shape memory alloy nickel-titanium and it is shown that one of the observed twinning modes can be identified as a type II mode, with the shear direction η 1 being derived from a cell edge of the parent B2 phase.About:
This article is published in Acta Metallurgica.The article was published on 1981-01-01. It has received 268 citations till now. The article focuses on the topics: Crystal twinning & Diffusionless transformation.read more
Citations
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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.
Journal ArticleDOI
Recent developments in the research of shape memory alloys
Kazuhiro Otsuka,Xiaobing Ren +1 more
TL;DR: Most of shape memory alloys are functional intermetallics as discussed by the authors, and they are now practically being used for couplings, actuators, medical guide wires etc., and are hopeful candidates for smart materials, which already exist.
Journal ArticleDOI
Asymmetry of stress–strain curves under tension and compression for NiTi shape memory alloys
TL;DR: In this paper, the deformation mechanism of polycrystalline martensitic NiTi shape memory alloys under tension and compression was investigated and it was shown that under compression, the material is quickly strain hardened and no flat stress-plateau is observed.
Journal ArticleDOI
The TiNi shape-memory alloy and its applications for MEMS
TL;DR: The shape-memory effect is a solid state phenomenon which exploits a reversible phase transformation to repeatedly achieve an initial shape, even after some deformation of the material as discussed by the authors, and many metal alloys exhibit this effect.
Journal ArticleDOI
The shape memory mechanism associated with the martensitic transformation in TiNi alloys—I. Self-accommodation
TL;DR: In this paper, a trace analysis of the three sides (habit planes) of the triangles in TiNi single crystals was performed, and it was found that these three variants formed plate groups clustered about one of the {100}B2 poles.
References
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Book
Electron Microscopy of Thin Crystals
TL;DR: Hirsch et al. as mentioned in this paper described further experiments on the preparation of thin film sections of embedded Backscatter Kikuchi diffraction in the SEM for identification of crystallographic thin films by electron microscopy.
Book
The theory of transformations in metals and alloys : an advanced textbook in physical metallurgy
Book
The theory of transformations in metals and alloys
J.W. Christian,H. M. Otte +1 more
TL;DR: In this paper, the authors present a general introduction to the theory of transformation kinetics of real metals, including the formation and evolution of martensitic transformations, as well as a theory of dislocations.
Journal ArticleDOI
Crystal structure and internal defects of equiatomic TiNi martensite
TL;DR: In this paper, the crystal structure and internal defects of equiatomic TiNi martensites have been studied using the techniques of electron microscopy, electron diffraction, and X-ray diffraction.
Journal ArticleDOI
Cubic to Orthorhombic Diffusionless Phase Change— Experimental and Theoretical Studies of AuCd
TL;DR: In this paper, a theoretical analysis of the cubic to orthorhombic transformation is presented which predicts for a partly transformed crystal, the interface plane, orientation relationships, and macroscopic distortions from a knowledge only of the lattice parameters of the initial and final phases.