Based on the analysis, the principle of iso-stress sample design and the shape and dimensions of a recommended iso-stress specimen for bending fatigue of sheet materials have been suggested.
基于这种分析结果，提出了板材弯曲疲劳等应力试样设计原理以及推荐试样的形状和尺寸。
The plated sheet can be used to prepare the specimen for optical microscopy, SEM and TEM, it can also be used for the heat-treatment and the microhardness test of the powders.
电镀薄片可以用来制备光学显微镜、扫描电镜及透射电镜的观察样品，而且可以用来进行粉末的热片进及业余末的显微维氏硬度测试等实验。
The fatigue behaviours of Superalloy GH901 under major combined with minor cycle have been systematically studied at room temperature using smooth specimen and sheet with center hole.
采用光滑圆棒和中心孔板片试样，对GH901合金室温高低周复合疲劳进行了系统的研究。
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