Effects of Friction Stir Processing on the Phase Transformation and Microstructure of TiO2-Compounded Ti-6Al-4V Alloy
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With the aim to improve the surface wear resistance properties of Ti-6Al-4V alloy as well as its biocompatibility as implants in human bodies, TiO2 particles are introduced to strengthen the properties of Ti-6Al-4V through the effect of friction stir processing. The effects of friction stir processing on the phase transformation and microstructure of TiO2-compounded Ti-6Al-4V are investigated systematically. Grain refinement in the stirring zone and phase transformation in the matrix material are observed and discussed in detail. The study provides a new insight on the desired properties of Ti-6Al-4V for biomedical applications using friction stir processing.
KeywordsTiO2 Transition Zone Base Material Composite Layer TiO2 Particle
This work was supported by the projects of the National Natural Science Foundation of China under Grant Nos. 51302168 and 51674167, Shanghai Pujiang Program (Grant No: 15PJD017), Medical Engineering Cross Research Foundation of Shanghai Jiao Tong University under Grant No. YG2014MS02, and SMC-ChenXing Project Shanghai Jiao Tong University.
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