Nitinol in 1970s: Orthodontic archwires
The behaviour of Nitinol is written as 1970s’s “Orthodontic archwires,” fixed by 1. An advert’s adjective is not a melting point. “Room temperature” alone is not a figure. Uses span buildings to defence / safety. Pairings matter: titanium.
Near-equiatomic Ni–Ti that remembers shape and super-elasticates — stents, orthodontics and actuators. Nitinol is one of 32 materials in this atlas, grouped under advanced: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Scores compare Nitinol with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates. Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.
Nitinol (NiTi (~50/50 at.%)) is a family of grades whose density ~6.45 g/cm³, heat band ~1310 °C, and fire letter A1 metal. Nitinol is sold as grades, not as a single substance. Chemistry NiTi (~50/50 at.%), density ~6.45 g/cm³, heat band ~1310 °C. This atlas treats Nitinol as a system: mill route, coatings, tests and the cavity it sits in.
“Orthodontic archwires” for Nitinol in 1970s carries 1. Praise without that figure is not a property.1970s
Figures to keep
- Year of the condition
- 1970s
- Property figure
- 1
- Material
- Nitinol
- Use line
- Orthodontic archwires