titanium axle Application prospect titanium material

Titanium is first discovered by British scientists Geneigeer from ilmenite ore in 1791 , in 1795 the German chemist carat Plott also discovered the element from rutile and named "Titanium ." Due to the high chemical activity of titanium , in 1910 it was discovered 120 years after it first extract the metal titanium , magnesium reduction method material titanium in 1940 had titanium sponge , from the foundation of industrial production methods titanium .

Titanium reserves in the crust is very rich , it is second only to iron, aluminum , magnesium, ranking fourth , more than ten times more than the sum of the common metals copper, nickel , lead and zinc. Industry for the production of titanium ore rutile , ilmenite and titanomagnetite .

Titanium metal has many excellent properties : Titanium accounted for 4.5g/cm3, only 56% of the ordinary titanium sheet suppliers structural steel , structural steel and strength quite ordinary or higher , the metal structure material , titanium is the highest strength .

The melting point of titanium 1668 ℃, than iron , nickel, slightly higher than aluminum , magnesium , high melting point above 1000 ℃ . Therefore, as the light metal structural materials , titanium has a much better than aluminum, magnesium alloy heat resistance , maximum temperature up to 600 ℃.

A titanium oxide layer with highly rugged surface oxide film formed in an oxidizing atmosphere , which is an oxidizing acid, alkali , salt medium , especially in wet chlorine and seawater , has excellent corrosion resistance.

Titanium has allotrope crystal titanium wire price structure above 885 ℃ of close-packed hexagonal lattice of β phase , the following α -phase body-centered cubic lattice . Therefore , after adding different alloying elements , titanium can be divided into α-, β- and α + β categories. Allotrope of titanium so that when adding different alloying elements can be very different performance alloys and heat treatment has a large effect .

Expansion coefficient of titanium is 8.2 × 10-6 / ℃, the smaller the general structure of the metal , the thermal shock when a small stress , suitable for use in temperature changing environment .

Titanium has good toughness and fatigue resistance , weldability is also very good . Good low temperature properties of titanium , at -196 ℃, low temperature brittleness is not presented , these properties are very suitable for structural use .