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超细形状记忆合金的最新发展,使用无形前体.

Sung-Hwan Hong1, Hae-Jin Park1, Gi-An Song2

  • 1Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea.

Materials (Basel, Switzerland)
|December 9, 2023
PubMed
概括
此摘要是机器生成的。

研究人员探索了来自无形材料的超细形状记忆合金 (SMA),详细介绍了制造方法和影响其独特形状记忆和超弹性效应的因素. 这项工作为设计新型SMA提供了一个框架.

关键词:
没有形态的前体前体.结晶的动力学结晶的动力学形状记忆合金的合金.形状记忆效应 形状记忆效应超级弹性 超级弹性

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科学领域:

  • 材料科学 材料科学 材料科学
  • 金工业是金工业的一个方面.

背景情况:

  • 超细形状记忆合金 (SMA) 的最新进展利用无形金属材料.
  • 在这些先进的合金中观察到独特的形状记忆效应和超弹性行为.

研究的目的:

  • 系统地审查单相超细/纳米晶合金的制造方法.
  • 从无形前体中定义和扩大开发多组件SMA的方法范围.
  • 为设计具有增强性质的新型SMA建立框架.

主要方法:

  • 对超细/纳米晶合金的制造技术的审查.
  • 基于组成和热力学参数,分析多元组合无形合金中的结晶机制.
  • 通过超冷液态的化条件调节结晶运动.
  • 调查相稳定性 (奥斯石和马石) 受合金组成和粒度大小的影响.

主要成果:

  • 单相超细/纳米晶合金的制造方法得到了扩展.
  • 多元组件无形合金中的结晶机制可以通过组合和回火来控制.
  • 阶段稳定性和由此产生的形状记忆/超弹性行为与合金组成和粒度大小密切相关.
  • 提出了一种系统的合金设计方法,用于开发新的SMA.

结论:

  • 来自无形前体的超细SMA提供独特的形状记忆和超弹性特性.
  • 通过合金设计和加工控制结晶和相稳定是关键.
  • 拟议的方法框架有助于开发具有卓越性能的高级SMA.