Material property-altering process where the material is heated and a gas containing oxygen is supplied so that the carbon in the surface of the material reacts with the oxygen and leave the surface to decarburized. Beskrivning The process A: The material is heated to a critical temperature where decarburization can occur. B: The temperature is kept constant and is applied to a gas which includes oxygen. The oxygen in the gas reacts with the carbon in the workpiece surface and form carbon monoxide. The surface will thus have a lower carbon content and is softened. This then leads to carbon atoms further into the material to start migrating out to the surface to create a balance, i.e. interstitial diffusion. The longer the piece is in this environment the longer the diffusion process which controls the degree of decarburization. C: The material is then allowed to cool at room temperature. It is also possible to use a protective gas containing, for example argon to easily control how much of the material that decarburized. Decarburization Process films
