Memory metal renown appearance recollects alloy.

Memory metal renown appearance recollects alloy.

Last centuries 70 time, one kind appeared to have in international data science " memory " the alloy of form function. Recollecting alloy is one kind very all the more metal, it is very easy by labyrinthian, we put it into the aquarium that containing hot water inside, metal rush ahead; Put it cold water in, metal recovered original state. In the aquarium that containing cold water, spin a spring, when putting spring into hot water, spring active furl. The spring in cold water recovered its original state, and in hot water, can shorten, spring can of infinite number be mixed to shorten by drawing, shorten again lay out. These have the intelligent metal make it that recollects force by a kind, its microcosmic construction has two kinds of relatively smooth and steady states, below high temperature this kind of alloy can be turned into any figure that you want, alloy falls in inferior temperature can by drawing, but if be opposite,it heats from the beginning, it can recall its original figure, and change go back. This kind of data calls memory the metal (Memory Metal) . It basically is data of nickel titanium alloy. For example, alloy of high temperature of shape of a helix, after passing high temperature anneal, its appearance is in helix state. Below room temperature, although use very great strength,pull it forcibly straight, but should heat it only sure " abnormal temperature " when, this alloy ases if recalled like what, recover at once its original helix figure. How is this to return a responsibility? Is it possible that does alloy also have the mankind in that way memory force?

Not be originally so return a responsibility! This uses certain alloy merely the rule that in solid state Shi Jijing body constructs to change along with temperature happening just. For example, nickel - it is different that titanium alloy constructs in 40 ℃ above and the crystal under 40 ℃ , but temperature is when change of 40 ℃ fluctuation, alloy can shorten or swell, make its appearance produces change. Here, 40 ℃ are nickel namely - of titanium memory alloy " abnormal temperature " . All sorts of alloy have from abnormal temperature. Afore-mentioned abnormal temperature of the sort of high temperature alloy are very high. When high temperature it is in smooth and steady state by shape of make it helix. Pull it forcibly below room temperature straight when, it is in not smooth and steady state however, consequently, want to heat it to abnormal temperature only, it recovers to be in the helix appearance of smooth and steady state originally at once.

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