What is the difference between hot rolled titanium plate and cold rolled titanium plate?

Titanium alloy is an alloy composed of other elements based on titanium element. Titanium has two kinds of isomorphic crystals: Titanium is an allotrope with a melting point of 1668°C and a close-packed hexagonal lattice structure below 882°C, called α-titanium; it is body-centered cubic above 882°C Character structure, called β-titanium. Using the different characteristics of the above two structures of titanium, adding appropriate alloying elements to gradually change the phase transformation temperature and component content to obtain titanium alloys with different structures.

Oxygen, nitrogen, carbon and hydrogen are the main impurities in titanium alloys. Oxygen and nitrogen have greater solubility in the α phase, which has a significant strengthening effect on the titanium alloy, but it reduces plasticity. It is usually stipulated that the oxygen and nitrogen content in titanium should be below 0.15-0.2% and 0.04-0.05%, respectively. The solubility of hydrogen in the α phase is very small, and too much hydrogen dissolved in the titanium alloy will produce hydrides, which will make the alloy brittle. Generally, the hydrogen content in titanium alloys is controlled below 0.015%.
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