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 a titanium; above 882°C, it has a body-centered cubic lattice structure, called ß 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.
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