Experimental device for hydrogen infiltration under permanent stress loading state

The utility model provides an experimental device for hydrogen infiltration under permanent stress loading state belongs to metal material capability test technical field. The utility model disclosesthe device is main including electrochemical testing system and mechanical stress loading device, mainly comprises system, electrochemistry workstation, galvanostat, venting device, hydrogen electrolysis pond, saturated calomel electrode, salt bridge, the supplementary platinum electrode of loading constant stress. The utility model provides a device and the hydrogen diffusion coefficient of the measurable material of method under the invariable tensile stress of difference, 6000N's power can be applyed to the device, test stress depends on the size of sample, the sample is thin more, the stress that can apply just bigger (the relation of pulling force and tensile stress: (Imgfile='re -re -DDA0001435463580000011. TIF'wi='142'he='89' /) wherein: sigma is tensile stress, the MPa of unit, F is pulling force, the N of