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Annealing is a heat treatment given to metals to ___________

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Annealing is a heat treatment given to metals to ___________

(a) Prevent dezincification

(b) Remove the residual stresses

(c) Lower the sulphur content

(d) Form a protective layer

I had been asked this question in an online quiz.

The origin of the question is Protective Measures Against Corrosion topic in division Corrosion, Electrolysis, Fuel Cells and Batteries of Engineering Chemistry II

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The correct answer is (b) Remove the residual stresses

Best explanation: Annealing is a heat treatment given to metals to remove the residual stresses. It involves heating a material to above its re-crystallization temperature, maintaining a suitable temperature, and then cooling.

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