New Coating Structures for Enhanced Tribological Performance

9610440 Keer这项研究的目的是开发所需的实验技术和预测性理论知识，以设计优化用于轴承和齿轮等基本机械部件的涂层。研究的第一步是设计等轴涂层，这种涂层有望比目前的柱状结构具有更好的面内强度。建议的处理技术包括涂层的重成核和/或高电流、低能量的离子轰击。这些涂层的机械和物理性能以及它们的接触疲劳抗力将被测定，并与显微组织相关联。将开发理论模型来解释这些相关性并对其进行推广。***

9610440 Keer The purpose of this study is to develop the experimental techniques and predictive theoretical understanding needed to engineer coatings that are optimized for use on basic mechanical components such as bearings and gears. The first step of the study is to engineer equiaxed coatings which are expected to have better in-plane strength than the current columnar structure. The proposed processing technique involves renucleation of coating layers and/or high current, low energy ion bombardment. The mechanical and physical properties of these coatings and their contact fatigue resistance will be determined and correlated with microstructure. Theoretical models will be developed to account for the correlations and to generalize them. ***