The Effect of Aging Temperature on Morphology of α Phase in Ti-3Mo-6Sn-5Zr Shape Memory Alloy

Endoh, Kazuki; Tahara, Masaki; Inamura, Tomonari; Kim, Hee-Young; Hosoda, Hideki; Miyazaki, S.

doi:10.1016/j.matpr.2015.07.407

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Such age hardening due to the formation of a precipitates in a b matrix occurs in various Ti-based alloys with a bcc structure, called b-type Ti alloys (17). Metastable b-type Ti alloys that show age hardening commonly have thermal-induced, stress-induced, or both types of martensitic transformation (18)(19)(20)(21)(22). Some b-type Ti alloys exhibit shape-memory effect and superelasticity, which are due to thermoelastic thermaland stress-induced martensitic transformations, respectively, from a bcc to an orthorhombic structure (22)(23)(24)(25)(26)(27).…”

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confidence: 99%

A lightweight shape-memory magnesium alloy

Ogawa

Ando

Sutou

et al. 2016

Science

173

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Shape-memory alloys (SMAs), which display shape recovery upon heating, as well as superelasticity, offer many technological advantages in various applications. Those distinctive behaviors have been observed in many polycrystalline alloy systems such as nickel titantium (TiNi)-, copper-, iron-, nickel-, cobalt-, and Ti-based alloys but not in lightweight alloys such as magnesium (Mg) and aluminum alloys. Here we present a Mg SMA showing superelasticity of 4.4% at -150°C and shape recovery upon heating. The shape-memory properties are caused by reversible martensitic transformation. This Mg alloy includes lightweight scandium, and its density is about 2 grams per cubic centimeter, which is one-third less than that of practical TiNi SMAs. This finding raises the potential for development and application of lightweight SMAs across a number of industries.

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confidence: 99%

A lightweight shape-memory magnesium alloy

Ogawa

Ando

Sutou

et al. 2016

Science

173

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“…It is coupled with a solution treatment prior, and is used to grow fine particulates into the matrix [25]. Doing this can tailor the mechanical properties of the material such that high strength from the phase, and the ductility of the phase can be utilised in the one material.…”

Section: Strengthening Mechanismsmentioning

confidence: 99%

Pseudoelastic Behaviour of the Ti Alloy

Denlay¹

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Biomedical alloys have long been used for medical and prosthetic applications. With an increase in medical science over recent decades and an ever-increasing proportion of the elderly, implanted devices are growing in popularity. During service, these alloys are subject to harsh environments. They need to be resistive to corrosion, not have any undesirable effects on the surrounding tissue, demonstrate low thermal expansion and be highly predictable in their properties across their service life. Applications where the implant is used to aid bone structure, such as in hip prostheses, also need to have moduli similar to bone in order to protect the patient from harmful stress-shielding effects. Due to the toxicity of commonly used biomedically alloys, such as the Ti-6Al-4V alloy, suitable alternatives are currently a strong point of research.This study investigates three variations of a β-Ti-Nb-Zr-Mo-Sn alloy and aimed to model the pseudoelastic effect under cyclic tensile loading in order to further understand the mechanical properties of these alloys. As well as this, a Python based data processing application has been developed in order to efficiently analyse cyclic data from the tensile testing and for subsequent testing in further investigations of similar loading styles.

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The Effect of Aging Temperature on Morphology of α Phase in Ti-3Mo-6Sn-5Zr Shape Memory Alloy

Cited by 2 publications

References 18 publications

A lightweight shape-memory magnesium alloy

A lightweight shape-memory magnesium alloy

Pseudoelastic Behaviour of the Ti Alloy

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