THE LASER MARKING INFLUENCE ON THE STAINLESS STEEL CORROSION RESISTANCE

Metallurgy and Materials
Authors:
Konchus Darina A. Sivenkov Aleksei V. Mikhajlov Andrei V. Pryahin Eugene I.
Abstract:

The research describes to the corrosion resistance study of AISI 304 steel treated with a MiniMarker2 – M20A4 laser marking system. The steel was marked with a 35 × 35 mm QR code containing 305 typewritten characters. Samples were tested on stability and readability after exposure to acids and alkalis, various chemical potent household detergents and disinfectants. To assess the durability of the applied laser marking, the sample with the marking is exposed to boiling tap water at 100 ° C for 3 hours. The intercrystalline corrosion tendency was estimated. The tests for the intercrystalline corrosion resistance were carried out according to the AMU method without provoking heating for unstabilized steel (GOST 6032–2003)