Question

Localized yielding of material can also be the reason for the generation of residual stresses in the casting.

(a) True

(b) False

The question was asked in my homework.

Question is taken from Residual Stress topic in section Cooling and Solidification of Casting-Forming-Welding I

Answer 1

Right answer is (a) True

For explanation: Localized yielding of material can induce residual stresses in the casting, because of a sharp notch or from various surface treatments like shot peening or surface hardening. To relieve residual stresses from the casting. Usually, heat treatment of the casting is done which also enhances mechanical properties in the casting product.