表面技术Issue(6)：115-119,5.DOI:10.16490/j.cnki.issn.1001-3660.2015.06.022
纳米压痕和划痕法测定TiO2纳米薄膜的力学性能
Nanoindenation and Nanoscratch Measurements to Determine the Mechanical Properties of TiO2 Nano Films
摘要
Abstract
ABSTRACT:Objective To determine the differences in mechanical properties of TiO2 nano-film prepared by the method of anodic oxidation on different titanium alloy surfaces (TA1, TC4, TC4F136) under the same processing conditions. Methods SEM and AFM were used to observe morphology and structure of these three kinds of samples. The UNHT nanoindentor was used to test the mechanical property of TiO2 nano-film, and nano scratch was performed to determine the adhesive strength and the friction property between TiO2 nano-films on the three titanium alloy surfaces and the substrate. Nanoindentation was used to test microhardness and elastic modulus of TiO2 nano-films. Results It showed that the structure ( tube diameter, wall thickness and length) of TiO2 films formed on different titanium alloy substrate differed from each other although they were prepared in the same electrolyte and other electrochemical conditions. Conclusion The mechanical properties of TiO2 nano-films on titanium alloy substrates which are pre-pared by anodic oxidation depend on the micromorphology of TiO2 and its adhesive strength with the substrates which ultimately de-pend on the difference of elementary composition of those alloys.关键词
钛合金/TiO2 薄膜/力学性能/纳米划痕/纳米压痕Key words
titanium alloy/TiO2 film/mechanical property/nanometer scratch/nanometer indentation分类
矿业与冶金引用本文复制引用
龙东平,薛建荣,晏智鑫..纳米压痕和划痕法测定TiO2纳米薄膜的力学性能[J].表面技术,2015,(6):115-119,5.基金项目
国家自然科学基金项目(51105385,31271057) （51105385,31271057）
中国博士后基金(2012M511397) Fund：Supported by the National Natural Science Foundation of China (51105385,31271057) and China Postdoctoral Science Foundation(2012M511397) （2012M511397）
