Progress in partially degradable titanium-magnesium composites used as biomedical implants

Jianping Wang; Zhifan Bao; Chenliang Wu; Song Zhang; Ningwei Wang; Qiang Wang; Zhe Yi

doi:10.3389/fbioe.2022.996195

Progress in partially degradable titanium-magnesium composites used as biomedical implants

Front Bioeng Biotechnol. 2022 Sep 7:10:996195. doi: 10.3389/fbioe.2022.996195. eCollection 2022.

Authors

Jianping Wang^{1

2}, Zhifan Bao², Chenliang Wu¹, Song Zhang¹, Ningwei Wang³, Qiang Wang², Zhe Yi²

Affiliations

¹ School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, China.
² School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China.
³ School of Materials Science and Engineering, Northeastern-University, Shenyang, China.

Abstract

Titanium-magnesium composites have gained increasing attention as a partially degradable biomaterial recently. The titanium-magnesium composite combines the bioactivity of magnesium and the good mechanical properties of titanium. Here, we discuss the limitations of conventional mechanically alloyed titanium-magnesium alloys for bioimplants, in addition we summarize three suitable methods for the preparation of titanium-magnesium composites for bioimplants by melt: infiltration casting, powder metallurgy and hot rotary swaging, with a description of the advantages and disadvantages of all three methods. The titanium-magnesium composites were comprehensively evaluated in terms of mechanical properties and degradation behavior. The feasibility of titanium-magnesium composites as bio-implants was reviewed. In addition, the possible future development of titanium-magnesium composites was discussed. Thus, this review aims to build a conceptual and practical toolkit for the design of titanium-magnesium composites capable of local biodegradation.

Keywords: degradation; galvanic corrosion; implant; mechanical property; titanium-magnesium composite.

Publication types

Review