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Published on: March 1, 2013
Bio-functional niobium-based metallic biomaterials: Exploring their physicomechanical properties, biological
Ziyuan Liu1, Ming-Chun Zhao2, Dengfeng Yin2
1College of Mechanical Engineering, University of South China, Hengyang 421001, PR China; School of Materials Science and Engineering, Central South University, Changsha 410083, PR China.
Abstract:
The significance of biomedical applications of bio-functional niobium (Nb)-based metallic biomaterials is underscored by their potential utilization in implant application. Nb-based metallic materials present reliable physicomechanical and biological properties, thus represent materials highly suitable for implant application. This review provides an overview on the advances of pure niobium and Nb-based metallic materials as implant materials over the past 20 years, and highlights the advantages of Nb-based metallic biomaterials for implant application in terms of their physicomechanical properties, corrosion resistance in biological media, magnetic resonance imaging (MRI) compatibility, cell compatibility, blood compatibility, osteogenesis, and bioactivity. An introduction is provided for the production and processing techniques for Nb-based metallic biomaterials, including traditional melting processes like vacuum arc remelting, additive manufacturing like selective laser melting (SLM), electron beam melting (EBM), spark plasma sintering (SPS), and severe plastic deformation like equal channel angular pressing (ECAP), multi-axial forging (MAF), high pressure torsion (HPT), as well as their physicomechanical properties and implant application. Also suggested are the critical issues, challenges, and prospects in the further development of Nb-based metallic biomaterials for implant applications. STATEMENT OF SIGNIFICANCE: Nb-based biomaterials have gained significant interest for bioimplantable scaffolds because of their appropriate mechanical characteristics and biocompatibility. No prior work has been published specifically reviewing bio-functional Nb-based biomaterials for exploring their physicomechanical properties, biological significance, and implant applications. This review provides an overview on the advances of niobium and Nb-based materials as implant materials over the past 20 years, and highlights the advantages of Nb-based biomaterials for implant application. An introduction is provided for the production and processing techniques for Nb-based biomaterials, as well as their physicomechanical properties and implant application. Also suggested are the critical issues, challenges, and prospects in the further development of Nb-based biomaterials for implant applications.
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