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Metallurgical Engineering · Q12

Mechanical Metallurgy

Engineering and GATE · Metallurgical Engineering · question 12

Q12

Fatigue strength of steel can be'increased by

A.
increasing tensile surface residual stresses
B.
introducing hydrogen in steel
C.
increasing the grain size
D.
increasing the specimen size
E.
increasing compressive surface residual stresses
Answer

Answer: Option E

Solution

Answer: Option E
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