Hot working of brittle materials is not possible as they do not show yielding behaviour.(a) True(b) FalseThis question was addressed to me in semester exam.This interesting question is from Advantage and Disadvantage of Hot and Cold Forming in division Types of Die & Metal Forming Processes of Casting-Forming-Welding II

Hot working of brittle materials is not possible as they do not show y

1.	Hot working of brittle materials is not possible as they do not show yielding behaviour.(a) True(b) FalseThis question was addressed to me in semester exam.This interesting question is from Advantage and Disadvantage of Hot and Cold Forming in division Types of Die & Metal Forming Processes of Casting-Forming-Welding II
Answer» The correct choice is (b) False For explanation: At high temperature, the MATERIALS generally have great amount of ductility and so there is no limit or RESTRICTION on the amount of hot WORKING that can be performed on a metal. Hence, EVEN the brittle materials can be used for the hot working. In hot working, the grain structure of material is refined which enhances the mechanical properties of material.

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