The application of titanium alloy in warship improves the service life and equipment performance in Marine environment. For this reason, titanium and titanium alloys are known as "future metal," "third metal," and "ocean metal." Russia, the United States, China, France, Japan and other countries attach great importance to the research and development of titanium alloy because of its excellent properties and important applications in Marine engineering and military fields.
Titanium and titanium alloy materials are widely used in ships. and titanium may be used in all large equipment and parts except ship equipment and cabin facilities, such as electronic information system, power system, auxiliary system, hull structure parts, propulsion system, etc. Foreign titanium alloy materials are mainly used in ship structure materials, ship pumps, valves, pipes and other accessories, power drives, heat exchangers, condensers, coolers, evaporators, acoustic devices, etc. Domestic titanium alloy materials are mainly used in deep submarine, power drive device, shipborne radar, electronic equipment, fasteners and so on.