Titanium materials have special characteristics. Due to their low density and excellent mechanical properties and good biocompatibility, titanium materials are used in aircraft construction, the automotive sector and medical technology. Titanium alloys can be roughly divided into three different classes, which can be distinguished metallographically. Depending on the alloy composition, a distinction is made between α, (α+β) and β alloys. Depending on the heat treatment and processing, different structures are formed, which affect the corrosion resistance and the mechanical properties. The picture on the left is an (α+β) alloy after an annealing step just below the α-β transformation temperature and subsequent rapid cooling to form an acicular α phase.
Standards: ASTM E112, DIN 17851, DIN EN 3114, ASTM F1854
