The two most prevalent shape-memory alloys are copper - aluminium - nickel and nickel - titanium (NiTi), but SMAs can also be created by alloying zinc, copper, gold and iron.

Shape memory alloy (SMA) is a class of “Smart Materials” that can exhibit unique thermomechanical phenomena (Shape memory effect and superelasticity/pseudo-elasticity), which involve the …

Sep 11, 2025 · Shape memory alloys (SMAs) are functional materials that reversibly change shape when stimulated. They uniquely convert thermal, magnetic, or mechanical energy into controlled …

A shape-memory alloy (SMA, smart metal, memory metal, memory alloy, muscle wire, and smart alloy) is an alloy that “remembers” its original, cold-forged shape by returning to that pre-deformed shape …

Since joining NASA Glenn, his work entails developing novel shape memory alloys (SMAs) with high and sub-zero actuation temperatures to enable new, lighter weight aerospace mechanisms and …

Apr 4, 2025 · Shape memory alloys are smart materials that remember their original shape when the alloy is subjected to thermal change or stress-induced transformation. The main application of shape …

Apr 22, 2025 · Shape Memory Alloys (SMAs) exhibit unique properties that allow them to return to a predefined shape when subjected to specific stimuli, such as thermal or mechanical changes.

Feb 20, 2025 · Actuators: Shape Memory Alloys are used in actuators that convert thermal energy into mechanical work. In various industrial applications, SMAs can be used in pumps, valves, and other …

When a SMA is in martensite form at lower temperatures, the metal can easily be deformed into any shape. When the alloy is heated, it goes through transformation from martensite to austenite. In the …

May 22, 2023 · SMA changes its crystal structure and returns to its original shape when heated above its transformation temperature.