Research of gas desorption mechanisms under metal wire heat treating
A method for studying the processes of gassing in vacuum has been developed to determine the mechanism of gas desorption without long isothermal heating by using oscilloscope measurements. By using this method, the processes of gas desorption have been studied when heating steel welding wire. It was found that when the heating rate varies, the proportion of gases, released by the decomposition of subsurface formations and the diffusion of the wire volume, changes. Establishing the mechanism of gassing by the method proposed allows determining at what wire production stage (rolling or drawing) more gas gets into the metal, as well as optimizing the annealing regimes, degassing and ion etching. The method developed can be used to optimize wire-processing technology cycles at various production stages.