Memory alloy art installation

In 1932, Swedish scientist Oland first observed the "memory" effect in gold cadmium alloys, which means that after the shape of the alloy is changed, it can return to its original shape once heated to a certain phase transition temperature. People refer to alloys with this special function as shape memory alloys. Note: This exhibit demonstrates interactive heating of alloys using electric heating wires, with lighting serving as an auxiliary guide.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Shape memory alloy effect memory alloys, especially nickel titanium alloys (Nitinol), are intelligent materials with unique physical properties. Its charm lies in its Shape Memory Effect (SME) and Superelasticity. The shape memory effect refers to the phenomenon in which a material undergoes deformation under external force and can then return to its original shape when heated to a certain temperature. The scientific principle of this effect is based on the microstructural changes within the material. In nickel titanium alloys, this change is usually related to the transformation of two phases, martensite and austenite. At low temperatures, alloys exist in the martensite phase, which has lower symmetry and higher elastic modulus, allowing the alloy to withstand significant deformation. When the temperature rises above the transition temperature, martensite.