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“记忆”合金,是指具有形状记忆效应的合金制件,在明显的塑性形变之后,经过适当处理,可以回复到它变形前的原始形状。这种形状的回复,是通过将制件加热到一定的温度来激发的。合金在回复过程中会产生相当大的力,可作不同程度的机械功,因而具有相当的实用意义。其中最常用的是55-Nitinol合金,为镍含量在54～56％之间的镍钛金属间化合物,是五十年代末,美国海军武器实验室(U.S.Naval Ordnance Laboratory)在研究镍钛合金时,偶然发现的。镍钛记忆合金的形状记忆过程简述如下: 1.镍钛合金的制件可以是不同尺寸的丝,棒,片,管等锻制件或铸件。
“Memory” alloy, refers to the shape memory effect of the alloy parts, after obvious plastic deformation, after appropriate treatment, it can return to its original shape before deformation. This shape of the reply, is by heating the workpiece to a certain temperature to stimulate. Alloy in the recovery process will have a considerable force, for varying degrees of mechanical work, which has considerable practical significance. The most commonly used 55-Nitinol alloy is a nickel-titanium intermetallic compound with a nickel content of 54-56%. In the late 1950s, when the US Naval Ordnance Laboratory was studying nitinol Occasional discovery. Ni-Ti memory alloy shape memory process is as follows: 1. Ni-Ti alloy parts can be different sizes of wire, rod, sheet, tube and other forgings or castings.