What is Nitinol

As Nitinol emerges to find more and more applications in medical devices and commercial and industrial markets, understanding the effects of material processing becomes increasingly important. More so than other materials, the properties of Nitinol are significantly affected by its fabrication processes. There are abundant amounts of processing data available in the industry. However, they are often kept proprietary and not released publicly. This paper reviews available publications on Nitinol fabrication processes, such as melting, forming, shaping, treating, cutting, joining and finishing, etc., commonly employed or developed for manufacturing Nitinol material and components. The effects of these operations on the material properties are discussed. As Nitinol emerges to find more and more applications in medical devices and commercial and industrial markets, understanding the effects of material processing becomes increasingly important. More so than other materials, the properties of Nitinol are significantly affected by its fabrication processes. There are abundant amounts of processing data available in the industry. However, they are often kept proprietary and not released publicly. This paper reviews available publications on Nitinol fabrication processes, such as melting, forming, shaping, treating, cutting, joining and finishing, etc., commonly employed or developed for manufacturing Nitinol material and components. The effects of these operations on the material properties are discussed.. General Nitinol, chemistry, and trace elements requirements are defined in an ASTM standard, F2063-00. The Nitinol transformation temperatures are extremely sensitive to a small Ni or Ti concentration variation. The sensitivity increases with Ni content in the alloy. For alloys having greater than 55.0 weight percent Ni, a one weight percent deviation in Ni (or Ti) Proceedings of the International Conference on Shape Memory and Superelastic Technologies, Kunming, China, P.285-292 (2001). 2 concentration will result in approximately a 100°C shift in transformation temperatures. This extreme sensitivity requires any melting practice to tightly control the Ni and Ti ratio to meet the required tolerance in transformation temperatures. If you are looking for high quality, high purity and cost-effective Nitinol, or if you require the latest price of Nitinol, please feel free to email contact mis-asia.