氧化鈦膜組織和力學(xué)性能
( 西安交通大學(xué) 金屬材料強(qiáng)度國(guó)家重點(diǎn)實(shí)驗(yàn)室， 西安 710049)
摘 要: 利用等離子體氧化技術(shù)對(duì)鈦進(jìn)行了表面處理， 并對(duì)其組織形貌、 晶體結(jié)構(gòu)以及結(jié)合強(qiáng)度和彈性模量等力學(xué)行為進(jìn)行了討論。 結(jié)果表明： 鈦表面生成了一層多孔的二氧化鈦膜， 該膜層與基體結(jié)合強(qiáng)度高， 均超過(guò)30 MPa； 彈性模量隨著電壓的升高而升高， 這與薄膜的晶體結(jié)構(gòu)發(fā)生變化有關(guān)。
關(guān)鍵字: 等離子體氧化； 結(jié)合強(qiáng)度； 彈性模量； 鈦
titania films by plasma electrolyte oxidation under
different applied voltages
（ State Key Laboratory for Mechanical Behavior of Materials, Xi’an 710049, China）
Abstract: The surface modification of titanium was processed by plasma electrolyte oxidation. The microstructure, crystal structure bonding strength and elastic modulus of the film were discussed. The results show that a porous titania is formed on Ti substrate and its bonding strength with the substrate is higher than 30 MPa. The elastic modulus increases with the increase of applied voltage due to the change of crystal structure of titania layer.
Key words: plasma electrolyte oxidation；bonding stress；elastic modulus；titanium
