Shape-memory alloy - Wikipedia
In metallurgy, a shape-memory alloy (SMA) is an alloy that can be deformed when cold but returns to its pre-deformed ("remembered") shape when heated. It is also known in other names such as memory metal, memory alloy, smart metal, smart alloy, and muscle wire.
What Are Shape Memory Alloys? (Metallurgy, How They Work, …
Dec 2, 2020 · Shape Memory Alloys (SMAs) are an intermetallic alloy that can be deformed but will return to their original shape when heated. SMAs have a Shape Memory Effect (SME) and pseudoelastic effect, which are related to the same underlying mechanism.
Shape Memory Alloy (SMA) Actuators: The Role of Material, …
Apr 19, 2023 · Shape memory alloys (SMAs) are smart materials that are widely used to create intelligent devices because of their high energy density, actuation strain, and biocompatibility characteristics.
Shape Memory Alloys – Shape Memory and Structures (SMS) …
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 restoration (remembrance) of the …
Review A review of shape memory alloy research, applications and ...
Apr 1, 2014 · SMAs are a group of metallic alloys that can return to their original form (shape or size) when subjected to a memorisation process between two transformation phases, which is temperature or magnetic field dependent. This transformation phenomenon is known as the shape memory effect (SME).
How do shape-memory materials work? - Explain that Stuff
Mar 16, 2023 · An easy-to-understand introduction to shape-memory alloys and plastics. What are they, how do they work, and what are they used for?
Shape Memory Alloys for Aerospace, Recent Developments, and …
Shape memory alloys (SMAs) show a particular behavior that is the ability to recuperate the original shape while heating above specific critical temperatures (shape memory effect) or to withstand high deformations recoverable while unloading (pseudoelasticity).
Shape memory alloys, properties and applications: A review
May 22, 2023 · Shape memory alloys (SMAs) are materials that both industry and research are interested in. SMAs are materials that, after a seemingly irreversible deformation, can return to their original shape. This alloy has poor yield strength when heated below its transformation temperature and will simply deform into any new shape that it can retain.
How Shape Memory Alloys work, - UW Departments Web Server
Shape memory alloys display two distinct crystal structures or phases. Temperature and internal stresses (which play a part in super-elasticity) determine the phase that the SMA will be at. Martensite exists at lower temperatures, and austenite exists at higher temperatures.
Design considerations and applications of shape memory alloy …
Dec 1, 2024 · Shape memory alloys (SMAs) enable unique actuation capabilities through reversible phase transformations when heated, making them promising for adaptive structures. Integrating SMAs into composites creates smart systems with controllable shape morphing functionality. This paper reviews recent research on SMA-driven shape morphing composites.