项目名称： 钛合金表面超厚类金刚石薄膜的设计、制备及其在高载下的摩擦学行为研究

项目编号： No.51505050

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 机械、仪表工业

项目作者： 王军军

作者单位： 重庆理工大学

项目金额： 20万元

中文摘要： 鉴于钛合金摩擦学运动部件对高接触应力下耐磨防护薄膜的迫切需求以及超厚类金刚石薄膜在高载服役下摩擦学应用的潜在优势，本项目拟开展超厚类金刚石薄膜/钛合金体系的设计、制备以及其在高载下的摩擦学行为研究。项目首先将结合第一性原理计算和有限元模拟，在充分考虑钛合金表面易氧化的特征的基础上，探索钛合金表面膜基界面相互作用机理以及低应力薄膜的设计原则，随后结合磁控溅射与高密度等离子体增强化学气相沉积技术，在钛合金表面构筑超厚类金刚石薄膜，进而通过摩擦学实验和表/界面分析，揭示高载服役条件下各界面的结构演变以及薄膜结构与附着力、承载能力以及摩擦学特性之间的关联性，最终讨论提出高接触应力服役条件下超厚类金刚石薄膜/钛合金体系损伤模型和损伤机制，为钛合金表面低摩擦、高承载和长寿命一体化碳基薄膜的设计、制备及应用提供新思路和新途径，同时为提升其他轻质合金表面在高载服役环境下的摩擦学性能提供参考。

中文关键词： 类金刚石薄膜；摩擦学特性；承载能力；钛合金

英文摘要： Due to the urgent need for the anti-wear film materials under high load of titanium moving component and the advantage of the tribological behavior of super-thick diamond like carbon (DLC) films under the high load conditions, this project puts forward to research on tribological of super-thick DLC/titanium alloy system under the high load conditions. Through considering the easily oxidized characteristics of titanium surface, the interfacial adhesive energy between substrate and films and the stress distribution in multilayer film, the mechanisms of interaction between substrates and films and the design principles of super-thick DLC films will be explored. Then super-thick DLC films will be prepared by magnetron sputtering technology combined with high density plasma enhanced chemical vapor deposition on titanium alloy , the structure evolved , the relationship between micro-structure and adhesion, load carrying capacity and tribological properties under high load conditions will also be investigated. These results not only provide the new approaches fordesigning, deposition, and the application of the carbon-based film with excellent lubrication, high duration and high reliability on the titanium surface, but also provide a reference to enhance the tribological properties of other light alloys under high load condition.

英文关键词： Diamond-like carbon films;Tribologcal property;Load-bearing capacity;Titanium alloy