Nanostructured Surface for 38MoCrAl09 Steel by Nitriding in Nitrogen Atmosphere and YAG:Nd Pulse Laser Activation
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2008, Vol 31, Issue 2
Abstract
YAG:Nd pulse laser is usually used for cutting and welding. The paper is based by experiments using YAG:Nd pulse laser (KVANT 17-CIS made). Technological modules were assembled for laser beam deviation and for relative sample moving to manual controlled focused laser beam. In experiments was used a personal computer with adequate program for x-y sample moving (stepper system) and correlation with laser pulse. Steel sample (nitralloy steel) was fixed in nitriding chamber in a nitrogen flow. Defocused, laser beam energy and nitrogen pressure were modified. Hardness (HV5), macrostructure and microstructure were used for surface properties investigations.
Authors and Affiliations
Nelu CAZACU, Cătălin PINTILIE, Sorin DOBROVICI, Adolf BACLEA
Keywords
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