Titanium tube is an allotrope with a melting point of 1720°C. When it is lower than 882°C, it has a close-packed hexagonal lattice structure, called α titanium; above 882°C, it has a body-centred cubic lattice structure, called β titanium. Using the different characteristics of the above two structures of the titanium tube, adding appropriate alloying elements to gradually change the phase transformation temperature and phase content to obtain titanium alloys with different structures. At room temperature, titanium alloys have three matrix structures, and titanium alloys are divided into the following three categories: α alloys, (α+β) alloys and β alloys.
Titanium tube is a single-phase alloy composed of α-phase solid solution. It is α-phase no matter at normal temperature or at higher practical application temperature, with stable structure, higher wear resistance than pure titanium, and strong oxidation resistance. At a temperature of 500°C to 600°C, it still maintains its strength and creep resistance, but cannot be strengthened by heat treatment, and its room temperature strength is not high. It is a single-phase alloy composed of β-phase solid solution. It has a high strength without heat treatment. After quenching and aging, the alloy is further strengthened. The room temperature strength can reach 1372 ~ 1666 MPa, but the thermal stability is poor and it is not suitable for use at high temperatures.
grade 5 titanium sheet titanium rivet titanium exhaust tube Grade 23 Titanium Tube
没有评论:
发表评论