Preparation and mechanical properties of porous Ti-10 Mo alloy for biomedical applications

Lingling Zhi, Xin Lu, Qingyu Meng, Wei Xu, Xuanhui Qu

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The porous Ti-10Mo alloys from elemental powders were fabricated by a 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 the sintering temperature of 1300℃ the porous Ti-Mo alloys with uniform microstructure and pore distribution can be prepared, and the alloy exhibits 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 50 wt% of space-holder, pores are interconnected, 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 pore sizes of 485.6~545.9 μm, 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.

Original languageEnglish
Pages (from-to)1554-1558
Number of pages5
JournalXiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume45
Issue number6
Publication statusPublished - 2016 Jun 1
Externally publishedYes

Keywords

  • Elastic modulus
  • Pore structure
  • Porous Ti-Mo alloys
  • Powder metallurgy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys

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