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← ScienceWhich consequence results when improper quenching follows steel welding?
A)Martensite formation leads to embrittlement✓
B)Austenite formation allows further tempering
C)Ferrite formation enhances weld ductility
D)Pearlite formation ensures greater flexibility
💡 Explanation
Martensite and embrittlement happen when rapid cooling prevents carbon diffusion during austenite transformation, resulting in a hard, brittle microstructure via martensite formation. Therefore, embrittlement becomes problematic; rather than ductility because phase change is constrained.
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