Study on titanium-magnesium composites with bicontinuous structure fabricated by powder metallurgy and ultrasonic infiltration

S Jiang; L J Huang; Q An; L Geng; X J Wang; S Wang

doi:10.1016/j.jmbbm.2018.02.017

Study on titanium-magnesium composites with bicontinuous structure fabricated by powder metallurgy and ultrasonic infiltration

J Mech Behav Biomed Mater. 2018 May:81:10-15. doi: 10.1016/j.jmbbm.2018.02.017. Epub 2018 Feb 14.

Authors

S Jiang¹, L J Huang², Q An¹, L Geng³, X J Wang¹, S Wang¹

Affiliations

¹ Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, School of Materials Science and Engineering, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China.
² State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, School of Materials Science and Engineering, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China. Electronic address: huanglujun@hit.edu.cn.
³ State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, School of Materials Science and Engineering, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China.

PMID: 29475149
DOI: 10.1016/j.jmbbm.2018.02.017

Abstract

Titanium-magnesium (Ti-Mg) composites with bicontinuous structure have been successfully fabricated by powder metallurgy and ultrasonic infiltration for biomaterial potential. In the composites, Ti phase is distributed continuously by sintering necks, while Mg phase is also continuous, distributing at the interconnected pores surrounding the Ti phase. The results showed that the fabricated Ti-Mg composites exhibited low modulus and high strength, which are very suitable for load bearing biomedical materials. The composites with 100 µm and 230 µm particle sizes exhibited Young's modulus of 37.6 GPa and 23.4 GPa, 500.7 MPa and 340 MPa of compressive strength and 631.5 MPa and 375.2 MPa of bending strength, respectively. Moreover, both of the modulus and strength of the composites increase with decreasing of Ti particle sizes. In vitro study has been done for the preliminary evaluation of the Ti-Mg composites.

Keywords: Bicontinuous structure; Mechanical property; Powder metallurgy; Ti-Mg composites; Ultrasonic infiltration.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alloys / chemistry*
Magnesium / chemistry*
Models, Molecular
Molecular Conformation
Powders
Titanium / chemistry*
Ultrasonic Waves*

Substances

Alloys
Powders
Titanium
Magnesium