## 1 Introduction
[20] explored the effect of residual stress on a workpiece's surface after grinding on the corrosion resistance of the workpiece. The results showed that the type of corrosion on the workpiece surface depends on the influence degree between the surface topography and surface residual stress; when the residual stress is stronger, corrosion cracking is the main form of corrosion. [PERSON] et al. [21] simulated the corrosion behavior of an X80 UOE pipe in the natural environment. The simulation experiment found that residual stress accelerated the generation of stress corrosion cracks on the surface of the X80 UOE pipe; meanwhile, the specimens with higher surface residual tensile stress are prone to local corrosion. [PERSON] et al. [22] studied the effective regulation of the rolling process on the corrosion resistance of seamless automotive steel plates and found that with the increase in residual stress generated by rolling, the corrosion resistance of steel plates could be improved. [PERSON] et al. [23] studied the effect of residual stress on the corrosion behavior of welded structures and found that residual tensile stress can decrease the activation energy and surface atomic density of the welded construction, which reduces the corrosion resistance of the welded construction. Residual compress stress minimizes the need for activation energy to convert metal atoms into metal ions and increases the surface atomic density of the welded structure, which promotes corrosion resistance. [PERSON] et al. [24] observed the corrosion process of high-strength aluminum alloys after milling and found that the combination of residual stress and microcracks has an important effect on the corrosion resistance of processed aluminum alloy workpieces. [PERSON] et al. [25] studied the connection between stress and corrosion. Surface residual compressive stress has the opposite effect of residual tensile stress on surface corrosion resistance, and the residual tensile stress shows a negative correlation trend with corrosion resistance; with an increase in surface residual tensile stress, corrosion resistance decreases. [PERSON] et al. [26] compared the corrosion behavior of AZ80 magnesium with different surface residual stress, and the results show that the higher residual compress stress can improve the corrosion resistance of AZ80 magnesium. The scholars mentioned above analyzed the influence regulation of surface residual stress generated using different processing methods on the corrosion resistance of workpieces, which is that the residual tensile stress caused by processing can weaken the corrosion resistance of materials. In contrast, the residual compressive stresses can enhance the corrosion resistance of materials. After years of research, many scholars have studied the corrosion resistance effect regulations of different materials on the aspects of surface topography, surface roughness, and the type of surface residual stress. The research found that the effect of surface integrity indexes on corrosion resistance is relatively complex, and the effective regulations of different materials are different. To study the effective regulation of surface integrity on the corrosion resistance of low-alloy steel for hydrogen production reactors, this paper chose surface roughness and surface residual stress as the main surface integrity evaluation indexes and carried out corrosion experiments on hydrogen production reactor steel. The effect regulations of surface integrity on the corrosion resistance of the hydrogen production reactor were analyzed by comparing the surface topography, corrosion rate, surface roughness, and tensile mechanical property changes before and after electrolytic corrosion.