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Which outcome occurs when a shape-memory alloy undergoes an austenite-martensite phase transition under load?

A)Significant volume increase and cracking
B)Temporary shape change and energy dissipation
C)Permanent elongation due to dislocation glide
D)Reduced electrical conductivity substantial heating

💡 Explanation

When undergoing an austenite-martensite phase transition under load, a shape-memory alloy experiences deformation because the crystalline structure changes, absorbing energy. Therefore temporary shape change and energy dissipation result, rather than cracking, elongation, or heating which involve different deformation mechanisms at varying temperatures.

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