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Alloys with long memories

机译:记忆力长的合金

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摘要

Shape-memory alloys are remarkable materials. If subjected to a deformation that would be irreversible in most metals, they revert to their original shape on heating. Such materials have applications in sensors, actuators (for example, switches that respond to heat) and medical devices such as the stents and guide-wires used in catheters. Because most applications of shape-memory alloys involve multiple deformation/re-formation cycles, the stability of an alloy's shape-memory properties over repeated use - known as its reversibility - is a pressing issue. On page 85 of this issue, Song et al. report a great advance for the field: the development of a shape-memory alloy that has high reversibility.
机译:形状记忆合金是非凡的材料。如果受到大多数金属不可逆的变形,加热后它们会恢复为原始形状。这种材料可用于传感器,致动器(例如,响应热的开关)和医疗设备,例如导管中使用的支架和导丝。由于形状记忆合金的大多数应用都涉及多个变形/再形成循环,因此反复使用后合金形状记忆特性的稳定性(称为可逆性)是一个紧迫的问题。在第85页上,Song等。报告了该领域的一项重大进展:开发出具有高可逆性的形状记忆合金。

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  • 来源
    《Nature》 |2013年第7469期|42-43|共2页
  • 作者单位

    Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;

    Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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