(A) Immobility of dislocation (X)
(B) Strain-ageing (
)
(C) Increase in Young’s modulus (X)
(D) Strain hardening (X)
Answers: Between 230 and 370°C, blue brittleness is caused in mild steel because of the Strain-ageing.
Between 230 and 370°C, blue brittleness is caused in mild steel because of the_________________?
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