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← ScienceWhich consequence results when curie temperature is exceeded in martensitic steel?
A)Austenite reverts due to increased diffusion
B)Magnetic order decreases because thermal fluctuation✓
C)Strength declines because crack tip plasticity
D)Corrosion rate decreases because surface passivation
💡 Explanation
The ferromagnetic order diminishes as temperature rises above the Curie point; this is because of thermal fluctuation overcoming the exchange interaction. Therefore, magnetic ordering decreases rather than strengthening, unlike chemical reactions or passivation phenomena.
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