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Japanese Developed iron alloy can be abused in extreme degree without losing its shape - even at very high temperature. The material can be used for earthquake resistance of houses and surgical products. By Kent Kroyer July 9, 2011 at. 16:00
A new, superelastic ferrous alloy, mixed by Japanese researchers at Tohoku University, has been found to be significantly more elastic than the current world record holder, an alloy of nickel and titanium.
Superelastic alloys are known to be bent and abused in extreme degree, and yet they return to their original shape. Therefore use such alloys for example to thin frames of metal.
A super elastic space studies alloy that can withstand large temperature fluctuations will be a gift for architects to ensure high-rise buildings against earthquakes or plane. (Photo: Wikipedia) Many uses of super elastic metal
The super-elastic alloys special properties come from their atomic lattice structure. There are several kinds. For example, one-way and two-way shape memory alloy, where the material deforms at one temperature, and at a second temperature, the material returns to its original shape. space studies
Such a one-way shape memory space studies alloy is used, for example, to a stent in the esophagus, who will maintain the diseased esophagus open. The stent is factory deformed narrow, so it is easy to introduce into the body when cold, but when it enters the esophagus heat, turning it gradually back to its originally fabricated rørfacon.
Likewise are resistant space studies to the arteries in the heart. But not to blood vessels in the brain, and it is a product that is lacking in the medical community. Cerebral arteries are thin, and a stent even in today's best material, nickel-titanium, would be too thick for use in the brain.
Here comes the new Japanese iron alloy in with an elasticity so great that it could be used in a brain stent. It does not belong to one-way and two-way shape memory alloys, for the super elastic properties over a wide temperature range from minus 196 to plus 240 degrees Celsius. The previous record ranks only from minus 20 to plus 80 degrees Celsius. Construction, aircraft and space can use metal
Stress load increases with rising temperature, and it has so far limited the practical use of super elastic materials in products to withstand large temperature space studies ranges," space studies says Toshihiro Omori.
The new iron alloy contains manganese and aluminum. But the new, extreme characteristics first appeared when it was added a splash nickel. Its stress insensitivity to temperature extremes means that it is obvious to the security of buildings, for example, in earthquake space studies prone areas.
We also remember how the defunct World Trade Center in New York collapsed Sept. 11, 2001, as the heat from the burning jet fuel reached into the insulated steel beams, space studies ruined space studies iron hardening and weakening the structure.
It applies to the spacecraft, space studies they are exposed to large temperature fluctuations, but also for aircraft that are daily exposed space studies to changes in temperature of about minus 70 degrees at high altitude to plus 40 degrees Celsius, if they land in the tropics. And cars suspension could benefit from the new alloy, predict scientists.
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