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Microstructural Characteristics of Ti-Co Alloys for Biomedical Applications

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Abstract:

TiCo alloys are important biomedical materials for both scientific and technological interests due to their potential applications as hard tissue replacement (HTR). The microstructural characteristics of the alloys in this system are of both scientific and technological interests. This work presents the results of microstructural characterization of as-cast TiCo alloys using a combination of various experimental methods. The results confirm that there are two variants of the Laves phase TiCo2, i.e. h-TiCo2 and c-TiCo2 exist in this system of as cast state. The eutectic reaction L(β-Ti)+ Ti2Co is determined to be occur at at 23 at.% Co, 1020 °C. Four peritectic reactions, i.e. L+ TiCo Ti2Co, L+ TiCo (c-TiCo2), L+(c-TiCo2) (h-TiCo2) and L+Co TiCo3 occur at 1058 °C, 1235 °C, 1210 °C, and 1190 °C, respectively. Eutectoid reaction (βTi) (αTi)+ Ti2Co occurs at 9 at.% Co, 685 °C.

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Info:

Periodical:

Advanced Materials Research (Volumes 791-793)

Pages:

469-473

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.791-793.469

Citation:

Cite this paper

Online since:

September 2013

Authors:

Xing Zhi Pang, Jing Hu, Yong Zhong Zhan

Keywords:

Biomaterial, Microstructure, Phase Diagram, Ti–Co Alloy

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