Shape memory in NiTi is because of stress induced form__________________?
Correct answer: A. Austenite to martensite
- A. Austenite to martensite
- B. Martensite to austenite
- C. Ferrite to austenite
- D. Austenite to ferrite
Explanation
When stressed below its transformation temperature, NiTi changes from austenite to stress-induced martensite, allowing temporary deformation. Heating reverses the change from martensite to austenite and restores the original shape.
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