Research on Mechanical and Corrosion Properties of Ti-Microalloyed Biomedical Cobalt-Based Alloy

Ya Ting Cao; Feng Wang; Qing Xuan Ran; Yu Lai Xu; Jun Li; Xue Shan Xiao

doi:10.4028/www.scientific.net/MSF.852.1168

Paper Titles

The Performance of Plasma and Multi-Physical Fields in DC Arc Plasma Reactor for CVD Diamond Film
p.1140

Development of a Temperature and Pressure-Controlled Corrosion Test Vessel
p.1147

Hydroxyapatite-Poly(Vinyl Alcohol)-Sodium Alginate Porous Hydrogels with Poly(Vinyl Alcohol) Surface Layer Used for Articular Cartilage Repair
p.1155

Preparation of Slow-Release Potash
p.1162

Research on Mechanical and Corrosion Properties of Ti-Microalloyed Biomedical Cobalt-Based Alloy
p.1168

Progress in Fractionation Processes of Lignocellulosic Biomass for Biorefinery: A Review
p.1175

Photoinduced Microencapsulation of Microcapsules Containing n-Octadecane with P(APUA) and P(AMA) Shell
p.1182

PGA Fiber Reinforced Calcium Aluminate Cement for Orthopaedic Application
p.1188

Research Progress in Cellulose Extraction, Modification and Application
p.1194

HomeMaterials Science ForumMaterials Science Forum Vol. 852Research on Mechanical and Corrosion Properties of...

Research on Mechanical and Corrosion Properties of Ti-Microalloyed Biomedical Cobalt-Based Alloy

Abstract:

0.15 wt. % Ti-microalloyed Co-28.5Cr-5.9Mo-0.27C alloy has been developed by examining the effect of solution and aging treatment on microstructure, mechanical and corrosion properties. The results showed that elongation of the cast specimen were lower than 8%, while reached 18% after solution-treated at 1220 °C for 4 h. Phase transformation from austenite to martensite was observed after aging at 800°C and the amount of transformed martensite increased with aging time. Polarization tests of the samples after solution and aging treatment were carried out in physiological saline at 37 °C, which showed a stable passive film formed on the surface and no apparent pitting phenomenon occurred on the specimens, which indicated that heat treatment has not significant influence on the corrosion resistance of Co-Cr-Mo-0.27C-0.15Ti alloy.