Under extreme conditions such as high speed and heavy load. 18Cr2Ni4WA steel cannot meet the service requirements even after carburizing and quenching processes. In order to obtain better surface mechanical properties and tribological property. a hollow cathode ion source diffusion strengthening device was used to nitride the traditional carburizing and quenching samples. https://safeersappliancers.shop/product-category/stoves-richmond-600df-dual-fuel-cooker-60cm-double-oven-jalapeno-red-444444724/