2014年8月23日星期六

Titanium is a new structural material titanium sheet

Titanium is a new structural material, it has excellent performance , such as low density (~ 4.5g · cm-3), high specific strength and fracture toughness, fatigue strength and resistance to crack propagation ability, hin titanium sheet good low-temperature toughness, excellent corrosion resistance , the maximum operating temperature titanium alloy for some 550 º C, is expected to reach 700 º C. So it gets in the aviation, aerospace, chemical, shipbuilding and other industrial sectors increasingly widely used , is developing rapidly . (Σ0.2 / density ) vs. Temperature light alloys, such as steel , stronger than titanium than other light metals , steel and nickel alloys , and this advantage can be maintained to about 500 º C , so some titanium alloys suitable for manufacturing gas turbine components . titanium wire Approximately 80 percent titanium production for the aviation and aerospace industries. Airframe structural materials such as the U.S. B-1 bomber , the titanium about 21 %, mainly used in the manufacture of the fuselage , wings, skin and bearing components . Airframe structural materials F-15 fighter , the titanium with a capacity of 7000kg, accounting for about 34% of structural weight . Boeing 757 aircraft structural parts , titanium about 5% , with a capacity of 3640kg. McDonnell Douglas (Mc-Donnell-Dounlas) produced DC10 aircraft , titanium with a capacity of 5500kg, accounting for more than 10% of the weight of the structure . The amount of titanium in the chemical and general engineering areas: U.S. , about 15 % of its production in Europe accounts for about 40%. As the excellent corrosion resistance of titanium and its alloys , good mechanical properties , as well as qualified histocompatibility titanium rods make it for the production of biological materials prosthetic devices.

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