Metal material corrosion fatigue test device

The utility model discloses a metal material corrosion fatigue test device which comprises a corrosion box, a liquid supply pipe, a liquid return pipe, a liquid storage container and a water pump, oneend of the liquid supply pipe is communicated with the corrosion box, and the other end of the liquid supply pipe is connected with the liquid storage container; one end of the liquid return pipe iscommunicated with the corrosion box, and the other end is connected with the liquid storage container; an upper through hole and a lower through hole are formed in a top cover and a bottom plate of the corrosion box respectively, a sample penetrates through the upper through hole and the lower through hole, and a corrosion fatigue test area is located in the center of the corrosion box. Sample clamping ends are respectively clamped on an upper clamping block and a lower clamping block of the testing machine; according to the utility model, the sample and the corrosion box are combined into anintegrated structure, so th