The cyclic deformation of four TiAl common microstructures is studied experimentally at room and high temperature. Multilevel and multirate tests are performed to highlight the microstructure impact on the Bauschinger effect and the strain rate sensitivity. The mechanical behaviors are linked to their corresponding deformation mechanisms. Results can directly be used to develop microstructure-sensitive modeling of the mechanical behaviors of TiAl alloys.

中文翻译：

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TiAl 通用微观结构在室温和高温下的循环变形：包辛格效应和应变率敏感性

通过实验研究了四种 TiAl 常见微观结构在室温和高温下的循环变形。执行多级和多速率测试以突出微观结构对包辛格效应和应变速率敏感性的影响。力学行为与其相应的变形机制有关。结果可直接用于开发 TiAl 合金力学行为的微观结构敏感模型。