Machine Design - GATE practice papers - Mechanical for Q. 365

Q.  What is the effect of plating on the fatigue strength of a machine element?(Marks: 02)
- Published on 19 Oct 15

a. plating increases fatigue strength of a machine element
b. plating decreases fatigue strength of a machine element
c. plating does not affect fatigue strength of a machine element
d. unpredictable

ANSWER: plating decreases fatigue strength of a machine element
 
The internal residual stresses importantly affect the fatigue strength of a machine element. These internal residual stresses are affected by plating. Thus plating decreases fatigue strength of a machine element.

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