Effect of {0 0 1}〈1 1 0〉 texture on superelastic strain of Ti–Nb–Al biomedical shape memory alloys

Inamura, Tomonari; Kinoshita, Y.; Kim, J.I.; Kim, H.Y.; Hosoda, Hideki; Wakashima, Kenji; Miyazaki, S.

doi:10.1016/j.msea.2006.02.092

Cited by 53 publications

(28 citation statements)

References 13 publications

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“…For biomedical applications, recently a systematic investigation has been carried out by our group for Ti-Nb and Ti-Mo alloys. [10][11][12][13][14][15] type Ti-based alloys exhibit phase (disordered bcc) at higher temperatures and phase (hcp, c=a ¼ 1:587) at lower temperatures. type titanium alloys also exhibit three metastable phases, 0 (hcp),…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Ti-<I>x</I>Cr-3Sn Alloys for Biomedical Applications

et al. 2011

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In order to replace toxic nickel element from NiTi biomaterials, Ti-Cr and Ti-Cr-X alloys are also new nickel free titanium based alloys for biomedical applications. In this study, comparative study of Ti-xCr-3Sn (x ¼ 4, 5, 6, 7, 8 and 9 mol%) alloys was carried out. Ti-4Cr-3Sn and Ti5Cr-3Sn alloys were composed of 0 martensitic phase (hcp) and other alloys with 6, 7, 8 and 9 mol% Cr were single phase at room temperature. Among the developed alloys, Ti-6Cr-3Sn alloy showed maximum fracture strain, maximum shape memory effect, maximum pseudoelastic response and minimum hardness and minimum yield stress due to transformation of metastable phase to stress induced martensite during mechanical loading. Vickers hardness and UTS has increased and fracture strain has decreased with greater than 6 mol% addition of chromium in Ti-xCr-3Sn alloys due to solid solution strengthening, phase stabilization and slip as dominant deformation mechanism. It is concluded that among the developed Ti-xCr-3Sn alloys, Ti-6Cr-3Sn alloy is hopeful new alloy for biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Comparative Study of Ti-<I>x</I>Cr-3Sn Alloys for Biomedical Applications

et al. 2011

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“…Ti-Nb based alloys are favourable candidates to substitute Nitinol, especially in biomedical applications [6]. Science the discovery of shape memory effect in Ti-Nb alloys in 1970s [7], a large scale of research is being proceed on these alloys for biomedical applications [8][9][10][11]. Ti-Nb based alloys are used for biomedical applications because of its outstanding biocompatibility, low elastic modulus [12,13], and good shape memory effect [14].…”

Section: Introductionmentioning

confidence: 99%

Properties of Carbonitrided Layer Formed on TiNbSn Shape Memory Alloy

2014

International Conference on Innovative Engineering Technologies (ICIET’2014) Dec. 28-29, 2014 Bangkok (Thailand)

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Abstract-The aim of this study to improve the mechanical and tribological properties of TiNbSn shape memory alloy (SMA) by rf plasma carbonitriding for using in in a bio-medical implementation. The treatment process was proceed at low working gas pressure of 0.075 mbar in the nitrogen-acetylene gaseous mixture to produce a superficial carbonitrided layer. The rf inductively coupled were used to treat samples at different plasma processing power from 300 to 500 W and for a fixed time 15 minutes. The microstructure and properties such as mechanical and tribo-logical of the untreated and treated TiNbSn samples were inspected. The surface hardness is improved by rf plasma carbonitriding to a maximum of 491 HV for plasma-processing power of 400W, and the friction coefficient decrease to 0.463 for the sample treated at 400 W.

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“…3,9) Meanwhile, it has been reported that strong textures are formed in -type Ti alloys by cold rolling and/or following heat treatment, causing the anisotropy in superelastic properties and mechanical properties. [12][13][14][15] However, there are few reports on the textures of the Ti-Zr-Nb alloys.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nb Content on Deformation Textures and Mechanical Properties of Ti-18Zr-Nb Biomedical Alloys

2009

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Recently, -type Ti alloys composed of non-toxic elements such as Nb, Ta, Zr, Mo and Sn have been studied for biomedical applications. The present author's research group has also developed these alloys including Ti-Zr-Nb as new biomedical superelastic materials. They reveal strong textures which are formed during thermo-mechanical processing and cause the anisotropy in mechanical properties. In this study, the effect of Nb content on the deformation texture of Ti-18Zr-Nb alloys was investigated. The anisotropy in mechanical properties of Ti-18Zr-Nb alloys was also investigated. Ti-18Zr-(15$18)Nb (at%) alloy ingots were fabricated by an Ar arc melting method and then homogenized at 1273 K for 7.2 ks. The ingots were cold rolled with a reduction up to 99% in thickness. For the as-rolled alloys, a weak -fiber texture was observed in Ti-18Zr-(15, 16)Nb alloys, whereas a well developed f001gh110i texture was confirmed in the Ti-18Zr-18Nb alloy. The former alloys revealed weak anisotropy in Young's modulus due to the weak texture, while the latter alloy exhibited strong anisotropy due to the strong texture.

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Effect of {0 0 1}〈1 1 0〉 texture on superelastic strain of Ti–Nb–Al biomedical shape memory alloys

Cited by 53 publications

References 13 publications

Comparative Study of Ti-<I>x</I>Cr-3Sn Alloys for Biomedical Applications

Comparative Study of Ti-<I>x</I>Cr-3Sn Alloys for Biomedical Applications

Properties of Carbonitrided Layer Formed on TiNbSn Shape Memory Alloy

Effect of Nb Content on Deformation Textures and Mechanical Properties of Ti-18Zr-Nb Biomedical Alloys

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