Hydrogen-absorption of steel

Abstract

1. The steel is more susceptible to hydrogen absorption after tempering at 20–450°C. The highest absorption capacity was found in the steel with a structure of troostite; the hydrogen absorption was minimal after tempering at 550–650°C. 2. Vacuum arc remelting reduces hydrogen absorption due to the higher purity of the metal. 3. The main factor in the absorption capacity of the steel is the presence of stresses, which sharply intensify the hydrogen absorption process.