How Does Titanium Alloy Work in Naval Ships?

Naval ship is the most important equipment of the navy, which is the platform of maritime transport and combat. The materials used to build the naval ship should be able to withstand the corrosion of seawater and ocean atmosphere, and should have a high ratio of strength, plasticity and processing technology. Due to the complex structure of the ship and the large varieties and specifications of the materials, the selection of materials with excellent performance is the basis for ensuring the integrity and advancement of naval equipment.

The application of titanium alloy to ships is mainly based on its many characteristics, such as the strength of a wide range, excellent mechanical properties, the unique physical properties (including magnetic), high specific strength and structure validity, excellent corrosion resistance and erosion resistance, good shock resistance, good machinability and weldability, reasonable cost and effectiveness.

The experience of a large number of marine piping materials proves that the service life of traditional materials in pipeline system is limited. CuNi pipeline system has a life span of 6 ~ 8 years, while the pipe, pump, valve, heat exchanger and other equipment of titanium alloy piping system can serve for more than 40 years. It is necessary to consider the strength, stress corrosion fracture toughness and weldability of marine titanium alloy because it needs to serve in the Marine environment for a long time.

The American marine titanium alloy is mainly based on aviation titanium alloy, and it has selected titanium alloy with corrosion resistance, weldability and anti-stress corrosion in seawater corrosion environment. The use of high performance titanium alloy on ships has a significant effect on improving the mobility, stability and effectiveness of the ship and reducing the hull quality.

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