Micromechanical Testing of Hierarchical Constituents in Microstructure and Its Application to Multiscale Material Design

金属材料的力学性能主要取决于其微观结构，包括晶界和析出物。因此，要开发出具有优异力学性能的材料，重要的是要检测每个微观结构组分的力学性能。我们已经开发出一种能够测量微米材料的机械性能的试验机。测量了片层结构TiAl合金、Mg-Zn-Y合金和钢等复相合金显微组织成分制备的微尺寸试件的力学性能。这种测试方法对于多尺度材料设计是有用的。

The mechanical properties of metallic materials are dominated by their microstructure, including grain boundaries, and precipitates. Therefore, to develop materials with superior mechanical properties, it is important to examine the mechanical properties of each microstructural constituent. We have developed a testing machine that enables the measurement of mechanical properties of microsized materials. The mechanical properties of microsized specimens prepared from microstructural constituents of multiphase alloys, including lamellar structured TiAl alloys, Mg-Zn-Y alloys and steels have been measured. This testing method is useful for multiscale material design.