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11.7】Prof. David A. Rigney
题目:Tribomaterial-a Key to...
 
2011-11-03 | 文章来源:非平衡金属材料研究部        【 】【打印】【关闭

题 目:Tribomaterial―a Key to Understanding and Controlling Friction and Wear

报告人:Prof. David A. Rigney

     Materials Science and Engineering

      The Ohio State University, USA

时 间:11月7日(周一)上午9:00-10:30

地 点:李薰楼468房间

Abstract

It is well known that sliding can produce dramatic structural and chemical changes in the material adjacent to the sliding interface. These can be examined experimentally by performing appropriate sliding tests and by using increasingly available characterization techniques. Computer simulations, especially those using molecular dynamics, offer complementary ways to examine what happens during sliding. Together, the experiments and simulations reveal a number of common features for a wide range of materials and size scales. Familiar models of friction and wear, such as those based on adhesion, fatigue, delamination or oxidation, are not adequate for describing or predicting what has been observed experimentally and by simulations. It is suggested here that a focus on the evolution of tribomaterial can guide us toward improved understanding and control of sliding friction and wear.

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