Mechanical properties and biological responses of ultrafine-grained pure titanium fabricated by multi-directional forging
作者： Yusuke Ito , Noriyuki Hoshi , Tohru Hayakawa , Chikahiro Ohkubo , Hiromi Miura
DOI: 10.1016/J.MSEB.2019.05.002
关键词:
摘要: Abstract We aimed to investigate strengthening of pure titanium by ultra-grain refinement using multi-directional forging and examine the biocompatibility after sulfuric acid treatment. Commercial grade 2 was forged large cumulative strain obtain homogeneous ultrafine-grained structure. The evolved microstructure obtained material equiaxed with high dislocation density. Average grain size evaluated be approximately 100 nm. showed higher tensile strength, Vickers hardness a lower elastic modulus compared conventional 2. surface features treatments were characterized roughness 1 μm composed fine dimples fractal structure hydrophilicity 15. Cell proliferation on significantly promoted than titanium. above results demonstrated potential as superior biocompatible implant material.
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