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Ti_0.5Fe_0.45Mn_0.05的多尺度弹性模块特性,是一种用于储存的铁--合金

Ludovic Bebon^1,2, Anne Maynadier^1,2, Yves Gaillard¹

¹Department of Applied Mechanics, FEMTO-ST Institute, CNRS, Université de Franche-Comté, 25000 Besançon, France.

Materials (Basel, Switzerland)

|January 8, 2025

概括

了解TiFeMn合金的机械行为对于可靠的储至关重要. 这项研究描述了合金的特征.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
储存技术储存技术

背景情况:

像TiFeMn这样的金属间化合物中的固态储存涉及相变.
这些相位变化会导致大量的体积变化和应力,影响水箱的可靠性.
准确的机械表征对于设计强大的储能系统至关重要.

研究的目的:

为了对Ti$_{0.5}$Fe$_{0.45}$Mn$_{0.05}$合金进行全面的机械表征.
在不同的尺度上研究材料的行为,从宏观到微观.
为了将机械性能与合金的微观结构相关联,以改进水箱设计.

主要方法:

通过对圆柱形样本进行压缩试验来确定宏观弹性模量.
超声波弹性表征和用于模和波桑比率的仪器缩入.
纳米印,扫描电子显微镜 (SEM) 和能量分散式X射线光谱 (EDS) 用于微观结构分析.

主要成果:

宏观弹性模块显示出高变性 (163229 GPa),平均为198 GPa.
超声波和缩方法产生了 269 GPa 的扬斯模量和 0.29.29 的波松比率.
微观结构分析揭示了具有明显弹性特性的多个共存的金阶段.

结论:

TiFeMn合金的机械性能依赖于尺寸,并受到其复杂的微观结构的影响.
宏观性质的变化归因于微观结构异质性和缺陷.
了解这些多层次的机械行为是提高储安全性和可靠性的关键.

关键词:

这是一种TiFe合金.弹性的弹性.储存的储存的储存.这是金属间金属.机械特性机械特性

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