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New Alloy
- May 09, 2017 -

Lightweight alloys: Al-Li alloys have the characteristics of high ratio strength (rupture strength/density), high ratio stiffness, and relatively small density, such as the use of a modern aircraft skin material, a large airliner can reduce the weight of 50 kg. With Boeing 747 as an example, each reduction of 1 kg, a year can profit 2 000 dollars. Titanium alloy is lighter than steel, corrosion resistance, non-magnetism, high strength, is used for aviation and naval vessels ideal materials. Hydrogen storage alloys: Due to the limited reserves of oil and coal, and environmental pollution in the process of use, especially the in the 1970 of the 20th century global oil crisis, so that hydrogen can become a new clean fuel research hotspot. Hydrogen storage and transportation is an important part in the process of hydrogen energy utilization. 1969 Dutch Philips company developed LANI5 hydrogen storage alloys, with a large number of reversible absorption and release of hydrogen, its alloy hydride LaNi5H6 hydrogen density and liquid hydrogen equivalent, about 1 000 times times the density of hydrogen. Ultra Superalloys: Nickel-cobalt alloy capability 1 200 ℃ high temperature, can be used for jet aircraft and gas turbine components. Nickel-cobalt-iron non-magnetic superalloys at 1 200 ℃ still have high strength, good toughness characteristics, can be used for space shuttle components and atomic reactor control rods and so on. It is still the direction of future research to find the alloy material which meets the requirements of high temperature and long time running (10 000 h), corrosion resistance, high strength and so on.

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