Ion Heating Energy Efficiency During Diffusion Welding in a Normal DC Glow Discharge

The methodology of determination of a glow discharge's heating efficiency dependence on process conditions and mode parameters while diffusion welding is provided in current work. It is established that the samples heating during diffusion welding in a glow discharge is provided by two heating sources: bombardment of their surfaces by accelerated in the near-cathode region gas ions as well as heat transfer from plasma of positive discharge column, which can reaches of 20 to 50% of total discharge's energy.