Prof. Dae-Eun KIM
School of Mechanical Engineering,Yonsei University, Seoul, Korea
Speech Title: Considerations and Strategies for Development of Wear Resistant Coatings
Abstract: Almost all moving components in mechanical systems experience frictional interaction during their motion which gradually leads to the degradation of the surface condition. This may in turn lead to alteration in the dimensional tolerance of the component which affects the performance of the mechanical system. Thus, to maintain high performance of the mechanical system, it is vital to prolong the life of the components by enhancing their wear resistance. One of the effective methods for decreasing wear is to use a protective coating. Typically, extremely hard coatings are desirable for such situations but they can cause adverse effects on the counter surface. Rather than simply increasing the hardness of the coating it is important to consider the response of the counter surface at the contact region. An effective strategy is to use a sufficiently compliant coating that can accommodate the contact stresses generated that the interface. The construction of these coatings is generally layered, with each layer serving a specific function. The basic design concept for this type of coating is expected to aid the development of highly wear resistant coatings for various tribological applications.
Keywords: Tribology, coating, friction, wear
Acknowledgements: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1A2C2004714).
Biography: Professor Dae-Eun Kim is currently a Professor at the School of Mechanical Engineering, Yonsei University, Seoul, Korea. Professor Kim received his B.S. degree in Mechanical Engineering from Tufts University, and M.S. and Ph.D. degrees in Mechanical Engineering from MIT. Professor Kim was an Assistant Professor at the Ohio State University before joining Yonsei University in 1993. Professor Kim served as the President of the Korean Society for Precision Engineering and the President of the Korean Tribology Society. He also served as the Editor-in-Chief of IJPEM, Senior Editor of JMST, and Associate Editor of ASME J. of Tribology. He currently serves in the editorial board of several tribology journals including Tribology Letters and Friction. Professor Kim has received many awards from various professional societies and institutions including the Ministerial Commendation from the Korea Ministry of Trade, Industry and Energy, and the Science and Technology Pojang National Award from the Korean President. Professor Kim is a Fellow of the International Academy for Production Engineering (CIRP) and a Fellow of the Korean Academy of Science and Technology. His research interests are tribology, coatings and surface modification.