A hard metal ball of 10mm diameter is slid across a soft metal surface and produces a groove of 3mm width. The interfacial shear strength is one-tenth of the bulk shear strength of the softer metal. For an experimentally measured coefficient of friction of 0.45 for the contact, calculate the percentage contribution of adhesive and ploughing components to the total coefficient of friction.

A hard metal ball of 10mm diameter is slid across a soft metal surface and produces a groove of 3mm width. The interfacial shear strength is one-tenth of the bulk shear strength of the softer metal. For an experimentally measured coefficient of friction of 0.45 for the contact, calculate the percentage contribution of adhesive and ploughing components to the total coefficient of friction.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Solidification of metals

The term solidification indicates the conversion of material from the state of liquid to the state of solid. The solid-state is more compact and rigid than liquid, and the solidification indicates the transformation of material from a random state to a more compact and crystalline form. The point at which dendrite formation in liquid starts taking place is referred to as the solidification point.

Question

Please solve no 4 (engineering tribology)

A hard metal ball of 10mm diameter is slid across a soft metal surface and produces a groove of
3mm width. The interfacial shear strength is one-tenth of the bulk shear strength of the softer
metal. For an experimentally measured coefficient of friction of 0.45 for the contact, calculate
the percentage contribution of adhesive and ploughing components to the total coefficient of
friction.

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