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← ScienceWhich outcome occurs when rapid heating of a metal occurs during quenching?
A)Increased probability of martensite formation✓
B)Decreased ductile-brittle transition temperature
C)Higher resistance to galvanic corrosion
D)Reduced susceptibility to hydrogen embrittlement
💡 Explanation
Martensite formation is increased because diffusionless transformation is favoured over equilibrium phase transitions. Rapid heating increases stress therefore favoring phases that accommodate strain rather than softer austenitic alternatives under equilibrium cooling.
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