氧化钛膜组织和力学性能
( 西安交通大学 金属材料强度国家重点实验室， 西安 710049)
摘 要: 利用等离子体氧化技术对钛进行了表面处理， 并对其组织形貌、 晶体结构以及结合强度和弹性模量等力学行为进行了讨论。 结果表明： 钛表面生成了一层多孔的二氧化钛膜， 该膜层与基体结合强度高， 均超过30 MPa； 弹性模量随着电压的升高而升高， 这与薄膜的晶体结构发生变化有关。
关键字: 等离子体氧化； 结合强度； 弹性模量； 钛
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
