In industry, shape memory alloys can be used as both passive and active SMA. The wide variety of industrial applications offers both challenges and opportunities, which are advanced by shape memory alloys. Passive shape memory alloys in industry Particularly in the area of temperature-induced regulations, passive shape memory alloys can offer relevant added value for

Nitinol is already an established material in medical technology and is driving it forward. In addition, shape memory alloys (SMA) offer further diverse possibilities and opportunities for their use in medical technology through changes in the manufacturing process and within the alloys. Areas of application for Nitinol in medical technology Shape memory alloys (SMA) find

What is nitinol? The first observation of a shape memory effect was made by the Swede Arne Ölander in the early 1930s on an AuCd alloy, which, however, could not be explained at that time. It was not until 1963 that intensive research on shape memory alloys was triggered by a chance discovery during research

What is the one-way effect? In the one-way effect, a material is apparently plastically deformed in its low-temperature phase and then returns to its original shape when heated. The low-temperature phase martensite is characterized in SMA by the presence of certain crystallographic regions within the martensite grains, so-called twins. If a stress is applied to

Semi-finished products from shape memory alloy Semi-finished products made of shape memory alloys (SMA) are raw material forms based on shape memory technology, which are commercially available in a basic geometric form of wires, rods, tubes and sheets. How are shape memory alloys produced? Shape memory alloys are produced by melting metallurgical methods such as

Shape memory alloys (SMA) are metallic materials that can “remember” their original shape by being heated above a critical temperature after an apparently plastic deformation. In English, shape memory alloys (FMA) are called shape memory alloys (SMA for short); in German, the names memory metal or shape memory metal and, rarely, shape memory metal alloy

What are shape memory effects? Shape memory alloys are intelligent materials which, thanks to their special effects, can assume key functions in modern technological applications. For example, they can advantageously substitute existing technologies or enable functions that cannot be implemented with conventional solutions under given boundary conditions. They are characterized by their ability to return

What is shape memory technology? Shape memory engineering refers to the technology behind shape memory alloys (SMA) and deals with the totality of all shape memory materials as well as their application. What is a solid state phase transformation? Depending on temperature and pressure, metals can assume three different states: Solid, Liquid, Gas. The transition

What is the two-way effect? Compared to the one-way effect, the two-way effect describes not only a shape memory in the warm state, but also in the cold state. This is a prerequisite for many applications, since the shape memory effect is to be used not only once, but several times or cyclically, if necessary