以纯钛为原料,经等通道转角大应变加工处理得到超细晶纯钛,采用微弧氧化法对纯钛和超细晶纯钛表面进行了改性处理,研究了改性处理对样品的表面形貌、润湿性和耐腐蚀性等的影响。实验发现微弧氧化处理后,虽纯钛及超细晶纯钛表面均形成多孔氧化膜层、接触角减小、表面粗糙度和表面能提高,但与纯钛相比,超细晶纯钛腐蚀速率与电流密度较纯钛的更小。因此,经微弧氧化法改性后,超细晶纯钛比纯钛更适合应用于医用植入物领域。 The pure titanium was used as the raw material to obtain the ultrafine-grained pure titanium through the large-angle corner processing of the channel. The surface of pure titanium and ultrafine-grained pure titanium was modified by micro-arc oxidation method. The effects of modification treatment on the surface of the sample Morphology, wettability and corrosion resistance and other effects. The experimental results show that after the micro-arc oxidation treatment, although the porous oxide film is formed on the surface of pure titanium and ultrafine-grained pure titanium, the contact angle decreases, the surface roughness and surface energy increase, but compared with pure titanium, Corrosion rate and current density is smaller than pure titanium. Therefore, modified by micro-arc oxidation, ultrafine-grained pure titanium is more suitable for medical implants than pure titanium.