The present work addresses the impact of quenched-in thermal vacancies on the mechanical properties of B2 iron aluminides. For this reason different binary Fe-Al alloys with different histories of heat treatment were indented at room temperature. The contributions of mono- and bi-vacancies in addition to triple defects on the elastic, plastic and elastic-plastic transition were evaluated using nanoindentation technique. In the samples containing bi-vacancies, the increase of the hardness was much more pronounced compared to the mono-vacancies.

中文翻译：

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空位对B2-FeAl金属间化合物力学行为的影响

本工作解决了淬火热空位对B2铝化铁机械性能的影响。因此，在室温下压痕了具有不同热处理历史的不同二元Fe-Al合金。使用纳米压痕技术评估了单空位和双空位以及三重缺陷对弹性，塑性和弹塑性转变的贡献。在含有双空位的样品中，与单空位相比，硬度的增加更为明显。