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The preparation and mechanical properties of porous Ti - 10 Mo alloy for biomedical applications
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State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing

Clc Number:

TG146.2

Fund Project:

National Natural Science Foundation of China (50674076, 50902115); Natural Science Foundation of Shaanxi Province (2013JZ015)

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    Abstract:

    The porous Ti-10Mo alloys from elemental powders were fabricated by powder metallurgy technique with ammonium bicarbonate as the space-holder. The effects of sintering process and space-holder content on the microstructure, porous characteristics and mechanical properties were studied. The results show that at sintering temperature of 1300℃ the porous Ti-Mo alloys with uniform microstructure and pore distribution can be produced, and the alloy exhibit a typical Widmanstatten structure. With the increase of the space-holder content, the pores become larger and the hole wall gets thinner. At or above 50wt% of space-holder, pores are interconnected, leading to forming a three-dimensional connectivity structure. When the space-holder content is in the range of 50%~60% , the alloys obtained show porosity of 62.8%~66.9%, and their elastic modulus and compressive yield strength vary from 2.9 to 1.3 GPa, and from 129.2 to 56.1 MPa, respectively.

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[Zhi Lingling, Lu Xin, Meng Qingyu, XU Wei, Qu Xuanhui. The preparation and mechanical properties of porous Ti - 10 Mo alloy for biomedical applications[J]. Rare Metal Materials and Engineering,2016,45(6):1554~1558.]
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History
  • Received:June 03,2015
  • Revised:August 26,2015
  • Adopted:October 13,2015
  • Online: October 08,2016

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