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Tribology and Surface Engineering Exam Questions and Answers

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Tribology and Surface Engineering Exam Questions and Answers

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Tribology and Surface Engineering


Energy loss from tribology - Answer-Frictional work

Manufacture replacement parts



Financial loss from tribology - Answer-Maintenance and replacement

Breakdowns

Reduced life cycle



Tribology - Answer-Study of friction, wear, lubrication and design of bearings



Surface engineering - Answer-Altering surface properties to reduce degradation over time



Asperities - Answer-Imperfections on material surface, 2 materials only contact where asperities meet



Coefficient of friction - Answer-Ratio of frictional force resisting motion and normal force pressing them
together



µ = Fs / Fn



Wear - Answer-Damage, erode or destroy by friction or use



Adhesive wear - Answer-Adhesion at the work hardened junctions cause shear-off

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