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Shape Memory Alloys (SMA). By Jessica Johnston, Fran D’Argenio, Becky Martin. What Are Shape Memory Alloys?. An alloy (a solution of two or more elements in a metallic matrix) that remembers its cold, forged shape and returns to it after having heat applied to it.
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Shape Memory Alloys(SMA) By Jessica Johnston, Fran D’Argenio, Becky Martin.
What Are Shape Memory Alloys? An alloy (a solution of two or more elements in a metallic matrix) that remembers its cold, forged shape and returns to it after having heat applied to it.
Examples of Shape Metal Alloys Are… • Copper-Aluminium-Nickel • Copper-Zinc-Aluminium • Iron-Manganese-Silicon
Uses of Shape Metal Alloys Include… • Dental Braces • Tweezers • Naval and Military Aircraft • Safety Valves and Fire Sprinklers • Spectacle Frames • Deep fryers • Underwire Bras • Engine Mounts • Fasteners, Seals, Connectors and Clamps • Mobile Telephone Anntenaes
History of Shape Metal Alloys The first shape metal alloy was discovered in 1932. However, it wasn’t until the 1960s that the nickel-titanium SMAs were discovered by Buehler. His discovery formed the basis of the first commercial SMA.