The study of friction, lubrication and wear has long been of both technical and practical interest, since the functioning of many mechanical systems depends on friction and wear values. This field, recently dubbed "tribology," has received increasing attention as it has become evident that the waste of resources resulting from high friction and wear is very great (more than 6% of the Gross National Product), and that the potential savings offered by improved tribological knowledge are correspondingly great.
Unfortunately, the background of most engineers in this important area is seriously deficient. For example, the average mechanical engineer has had less than two hours of instruction on wear as part of his/her university studies. To compound the problem, coverage of tribology in most reference works is insufficient or outdated and provides little guidance to those involved in new situations such as magnetic recording.
This program presents, in a systematic form, current insights into tribology, focusing on the concepts of surface energy and delamination. Experimental techniques and quantitative relationships in friction and wear will be discussed. Special consideration will be given to the tribological properties of such materials as polymers and composites, and to the problem of applying fundamental knowledge to the control of friction and wear behavior in practical situations.
باختصار هو علم يتناول مواضيع الاحتكاك والتزييت والبلي في المنظومات الميكانيكية.