Fabrication and Shape Memory Characteristics of Highly Porous Ti-Nb-Mo Biomaterials

• Autorzy: Kim Y.-W. , Mukarati T. W.

Identyfikatory

DOI

10.1515/amm-2017-0210

• Języki publikacji: EN

Abstrakty

EN

Non-toxic Ti-Nb-Mo scaffolds were fabricated by sintering rapidly solidified alloy fibers for biomedical applications. Microstructure and martensitic transformation behaviors of the porous scaffolds were investigated by means of differential scanning calorimetric and X-ray diffraction. The α″ – β transformation occurs in the as-solidified fiber and the sintered scaffolds. According to the compressive test of the sintered scaffolds with 75% porosity, they exhibit good superelasticity and strain recovery ascribed to the stress-induced martensitic transformation and the shape memory effect. Because of the high porosity of the scaffolds, an elastic modulus of 1.4 GPa, which matches well with that of cancellous bone, could be obtained. The austenite transformation finishing temperature of 77Ti-18Nb-5Mo alloy scaffolds is 5.1°C which is well below the human body temperature, and then all mechanical properties and shape memory effect of the porous 77Ti-18Nb-5Mo scaffolds are applicable for bon replacement implants.

Słowa kluczowe

EN

Ti-Nb-Mo alloys; porous scaffolds; biomedical materials; shape memory alloys

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1367--1370
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Kim Y.-W.

• Department of Advanced Materials Engineering, Keimyung University, 1000 Shindang-Dong Dalseo-Gu, Daegu 704-701, Korea

autor

Mukarati T. W.

• Department of Advanced Materials Engineering, Keimyung University, 1000 Shindang-Dong Dalseo-Gu, Daegu 704-701, Korea

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)