本文件规定了在室温（理想情况下在10°C和35°C之间）下对金属试样进行恒定振幅、力或位移控制的轴流机平面弯曲疲劳试验的条件，无需故意引入应力集中。本文件不包括反向/部分加载试验。试验的目的是提供相关结果，例如在给定材料条件下，施加的应力与失效循环次数之间的关系，在不同应力比下，用硬度和微观结构表示。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the conditions for conducting the plane bending fatigue test on an axial machine, constant-amplitude, force or displacement controlled, at room temperature (ideally between 10 °C and 35 °C) on metallic specimens, without deliberately introduced stress concentrations. This document does not include the reversed/partially loading test. The purpose of the test is to provide relevant results, such as the relation between applied stress and number of cycles to failure for a given material condition, expressed by hardness and microstructure, at various stress ratios.All current amendments available at time of purchase are included with the purchase of this document.