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Experimental investigation of the mechanical properties and auxetic behavior of iron-gallium alloys.

机译：铁镓合金的力学性能和拉力行为的实验研究。

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Iron-gallium alloys (known as Galfenol) are a unique material that have shown great potential for numerous applications. They exhibit a strong magneto-mechanical coupling, otherwise known as magnetostriction, which lends itself very well to transducer applications, from the nano-scale to macro scale. In addition, Galfenol is one of only a few metal alloys known to exhibit large auxetic or negative Poisson's ratio behavior. In order to develop any Galfenol-based applications, it will be necessary to understand its mechanical behavior. The goal of the research presented in this thesis therefore is to measure the elastic properties of Galfenol for a range of compositions in order to create a database, as well as present trends in the elastic properties. This is achieved through tensile testing of single-crystal Galfenol dogbone-shaped specimens and through Resonant Ultrasound Spectroscopy (RUS) of small parallelepiped samples.

机译：铁镓合金（称为Galfenol）是一种独特的材料，已在众多应用中显示出巨大的潜力。它们表现出很强的磁机械耦合，也称为磁致伸缩，非常适合从纳米级到宏观级的换能器应用。另外，Galfenol是已知的少数几种表现出大的膨胀或负泊松比行为的金属合金之一。为了开发任何基于Galfenol的应用，有必要了解其机械性能。因此，本论文提出的研究目标是针对各种成分测量Galfenol的弹性，以建立一个数据库，以及目前的弹性趋势。这是通过单晶Galfenol狗骨头形标本的拉伸测试以及小平行六面体样品的共振超声光谱（RUS）来实现的。

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作者
Schurter, Holly Marie.;
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作者单位

University of Maryland, College Park.;

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授予单位 University of Maryland, College Park.;
学科 Engineering Aerospace.;Engineering Mechanical.
学位 M.S.
年度 2009
页码 138 p.
总页数 138
原文格式 PDF
正文语种 eng
中图分类航空、航天技术的研究与探索;机械、仪表工业;
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入库时间 2022-08-17 11:37:38

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Experimental investigation of the mechanical properties and auxetic behavior of iron-gallium alloys.

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