| abstract |
The invention relates to a method for coding metal powder. Said method comprises the following steps: providing a melt, forming a melt stream, spraying the melt stream by means of a spray fluid, and forming metal powder particles from the melt stream. The method is characterized in that, during spraying of the melt and/or spray fluid, a coding component or a coding gas is added in such a way that the use of the coding component in the metal powder can be detected, wherein the the gaseous coding component comprises one or more isotopes of at least one gas and the fraction of at least one isotope changes compared to the natural fraction of said isotope in the gas and/or where the gaseous coding component contains gaseous alloying elements . (Automatic translation with Google Translate, without legal value) |