记忆合金是一种原子排列很有规则、体积变为小于0.5%的马氏体相变合金。这种合金在外力作用下会产生变形,当把外力去掉,在一定的温度条件下,能恢复原来的形状。由于它具有百万次以上的恢复功能,因此叫做"记忆合金"。当然它不可能像人类大脑思维记忆,更准确地说应该称之为"记忆形状的合金"。此外,记忆合金还具有无磁性、耐磨耐蚀、无毒性的优点,因此应用十分广泛。科学家们现在已经发现了几十种不同记忆功能的合金,比如钛-镍合金,金-镉合金,铜-锌合金等。
记忆合金 memory alloy ; TiNi ; shape memory alloy ; Nitinol
镍钛记忆合金 Ultimum Ti ; Nickel-titanium memory alloy ; ni-ti shape memory alloy ; Ni-Ti memory alloy
记忆合金支架 titanium nickel alloy stent ; memonic alloy stent
镍钛形状记忆合金 nickel titanium shape memory alloys ; NITI
铁基形状记忆合金 iron-based shape memory alloy ; fe-based sma
形状记忆合金元件 tini memory alloy element
铜基形状记忆合金 copper base shape memory alloy ; Cu-based shape memory alloy
铁磁形状记忆合金 ferromagnetic shape memory alloy ; FSMA
其他7例采用保守治疗法,其中1例应用带膜记忆合金支架置入。
Conservative treatment was adopted in other 7 cases, including membrane-covered memory alloy stent was used in 1case.
大部分形状记忆合金只能“循环”(或称改变形态)有限次数,之后材料就会疲劳了。
Most shape memory alloys can only "cycle" (or change form) a limited number of times before the material gives out.
陶瓷合成材料、纳米技术和外形记忆合金卓越地体现于其机体和超高涵道比的推进系统结构。
Ceramic composites, nanotechnology and shape memory alloys figure prominently in the airframe and ultra high bypass ratio propulsion system construction.
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