Twisted nitinol-wire eyeglass framed unbend at room temperatures. Is the transition temperature of the frames above or below room temperature?

Question

Twisted nitinol-wire eyeglass framed unbend at room temperatures. Is the transition temperature of the frames above or below room temperature?

Thanks in advance

Answer 1

Here is an excellent site that talks about nitinol and its "memory."http://www.grand-illusions.com/acatalog/Hot_Wire.html

Answer 2

So is the transition temperature of the frames below room temperature?

Answer 3

thanks for nothing drbob

Answer 4

To determine whether the transition temperature of the twisted nitinol wire eyeglass frames is above or below room temperature, we need to understand the material properties of nitinol.

Nitinol is a shape memory alloy primarily composed of nickel and titanium. It exhibits a unique property called shape memory effect, which allows it to return to its original shape after deformation when subjected to a specific temperature range known as the transition temperature.

The transition temperature of nitinol is typically above room temperature, usually ranging between 50°C to 100°C (122°F to 212°F). This means that at room temperature (around 20°C to 25°C or 68°F to 77°F), nitinol is expected to be in a more rigid state and unable to return to its original shape.

Therefore, based on this information, the transition temperature of the twisted nitinol wire eyeglass frames is likely to be above room temperature.