Does the weight of hard alloy change after oxidation?

The weight of tungsten carbide usually changes after oxidation.

When tungsten carbide undergo oxidation, oxides will form on the surface, which will lead to an increase in material quality, i.e. an increase in weight.

However, the specific amount of weight change will also be influenced by various factors such as oxidation degree, oxidation time, and environmental conditions. In some cases, if the oxidation process is accompanied by material peeling or loss, it may also cause a certain degree of weight reduction, but overall, the situation of weight increase due to oxidation is more common.