Effects of Additional Elements on Structure, Mechanical Strength and Chemical Properties of Ni-Free Ti-Based Bulk Metallic Glasses for Biomaterials

Jeong Jung Oak; Hisamichi Kimura; Akihisa Inoue

doi:10.4028/www.scientific.net/AMR.26-28.785

Paper Titles

Microstructure and Mechanical Properties of Hot-Pressed Co-Cr-Mo Alloy Compacts
p.769

Effect of Co-Doping Cation on Phase Stability of Zirconia Bioceramics in Hot Water
p.773

Effect of Sigma Phase in Co-29Cr-6Mo Alloy on Corrosion and Mechanical Properties
p.777

Effect of Second Phase Particles on Phase Stability of Zirconia in Hot Water
p.781

Effects of Additional Elements on Structure, Mechanical Strength and Chemical Properties of Ni-Free Ti-Based Bulk Metallic Glasses for Biomaterials
p.785

Effect of Thermo-Mechanical Processing on Texture and Elastic Modulus of Ti-Nb-Si Alloys for Biomedical Application
p.789

Configuration Optimization of Truss Structures Using Harmony Search Heuristic Algorithm
p.793

Hydroxyapatite Formation and Protein Absorption on Triethyl Phosphate Modified Titanium Surface
p.797

Preparation of Silicon-Containing Apatite Coating on Titanium
p.801

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Effects of Additional Elements on Structure, Mechanical Strength and Chemical Properties of Ni-Free Ti-Based Bulk Metallic Glasses for Biomaterials

Abstract:

We started investigation of new Ti-based bulk metallic glass (BMG) alloys with higher glass forming ability (GFA) for dental implants for medical market. These Ti-based BMG alloys do not contain Ni, Al and Be elements which are well known to be harmful for human body. In particular, cylindrical rod specimens of newly designed Ti-based BMG alloys with produced by copper mold casting exhibit compressive strength of above 1800 MPa. Ti-based BMG alloys also have high corrosion resistance that is passivated at the lower passive current densities of approximately 10-2Am-2 in 1 mass% lactic acid, 10-2~10-3Am-2 in PBS (-) at 310K which are lower than those of pure Titanium and Ti-6Al-4V alloy. These BMG alloys have high potentials to be applied as biomaterials in various forms, such as melt spun ribbons and cylindrical rods.