该装置可以真实模拟材料在流动腐蚀介质中的循环拉伸及压缩行为，实验过程中流场的流速、腐蚀介质及实验温度可控，拉伸、压缩载荷大小、频率可调，适用于材料在流动腐蚀介质中受到循环拉压交替载荷作用的疲劳腐蚀实验。本发明实验装置结构简单、成本低廉、操作简便、功能齐全，可以得到科学、真实的实验结果。

The device can simulate the cyclic tensile and compression behavior of materials in flowing corrosive medium. During the experiment, the flow velocity, corrosive medium and experimental temperature can be controlled, and the loading and frequency of tensile and compression can be adjusted. It is suitable for the fatigue corrosion experiment of materials subjected to cyclic tensile and compression alternating loads in flowing corrosive medium. The experimental device has the advantages of simple structure, low cost, simple operation and complete functions, and can obtain scientific and true experimental results.