Shape memory-alloy

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Shape memory-alloy

  1. 1. Shape Memory AlloysShape Memory Alloys
  2. 2. History Of SMA’sHistory Of SMA’s• Discovered in 1932.Discovered in 1932.• By Chang and Read.By Chang and Read.• In 1938, Brass (CuZn).In 1938, Brass (CuZn).• In 1951, Gold Cadmium (AuCd).In 1951, Gold Cadmium (AuCd).• Not utilized until 1962.Not utilized until 1962.• Buehler and co-workers discoveredBuehler and co-workers discoveredNickel-Titanium (NiTi).Nickel-Titanium (NiTi).
  3. 3. TypesTypes• Types Of Shape Memory AlloysTypes Of Shape Memory Alloys– One-way Shape Memory AlloysOne-way Shape Memory Alloys– Two-way Shape Memory AlloysTwo-way Shape Memory Alloys• Types Of AlloysTypes Of Alloys– NiTiNiTi– Copper BasedCopper Based
  4. 4. ExamplesExamples• Aerospace and Naval ApplicationsAerospace and Naval Applications• MedicalMedical– DentistryDentistry– TweezersTweezers• Mobile TelephoneMobile Telephone

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