Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China
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DOI:
10.7502/j.issn.1674-3962.2014.07.03
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Abstract:
Because of their excellent properties, titanium and its alloys have been widely used for aviation, aerospace, shipbuilding, chemical industries and so on. In order to meet the different requirement, new titanium alloy research was very active in China in recent 20 years. Among them, titanium alloy used for shipbuilding is one of the main directions of titanium alloy’s research and development in China. After near 50 years hard working, titanium alloys with different strength scale used for shipbuilding are formed in China, and their different size bars, plates, sheets, rods, wires etal were produced, which basically meet the requirement. This paper reviews the new main titanium alloys used for shipbuilding and their applications, such as Ti75 alloy with middle strength and high toughness, Ti31 alloy with middle strength and high plasticity, Ti-B19 alloy with high strength and toughness, Ti91 and Ti70 with middle strength, Ti80 with high strength and so on. This paper also introduces some new titanium alloys which can be used for marine, such as damage tolerance TC21 alloy with high strength (1100MPa) and toughness, damage tolerance TC4-DT alloy with middle strength (900MPa) and high toughness, Ti-1300 alloy with 1300MPa strength, Ti-1500 alloy with 1500MPa strength, Ti-1600 alloy with 1600MPa strength, CT20 alloy with middle strength and so on.