Titanal
Titanal is the brand name of a high-strength aluminum alloy from Austria Metall AG.
The first high-strength aluminum alloys were used after the successes at the Olympic Winter Games in 1964 . In the course of development, one of the highest-strength aluminum alloys was created by the early 1990s. From 1991 Titanal was also used for bicycle frames; Due to numerous frame breaks and the fact that the material could not achieve an excessive weight advantage, the alloy, initially touted as a miracle material, quickly disappeared from the bicycle industry.
The Titanal alloy is designed similarly to the so-called aircraft aluminum (AlZnMgCu1,5), the proportions of some alloying elements are slightly increased. With minimal additions of titanium and zirconium , the grain is refined, which increases the elongation at break . The name suggesting stability and lightness comes from this titanium addition, although titanium is only added to 0.25%. Titanal thus achieves a tensile strength of more than 650 N / mm² and an elongation at break of more than 14%. These properties are isotropic . The yield strength is over 600 MPa at thicknesses of 0.50 - 1.20 mm.
With an open-pored phosphoric acid anodizing layer, it is possible to bond Titanal together with epoxy resin adhesives.
Individual evidence
- ↑ a b c d Titanal on the AMAG website ( Memento of the original dated February 2, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b c d online glossary of Velotechnik by Christian Smolik
