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Formation of coatings with technologies using concentrated energy stream

Radek Norbert, Kalinowski Artur, Pietraszek Jacek, Orman Łukasz J., Szczepaniak Marcin, Januszko Adam, Kamiński Janusz, Bronček Jozef, Paraska Olga

Production Engineering Archives

2022

Vol. 28, Iss. 2

117--122

A number of modern surface processing methods use an energy flux. The examples include electro-spark deposition (ESD) and laser beam processing (LBP). The work concerns the study of Cu-Mo coatings deposited on C45 carbon steel, which were then eroded with a laser beam. The analysis included the analysis of the microstructure, measurements of macrogeometry and microhardness, corrosion resistance tests of selected areas after laser treatment. The coatings were applied with ELFA-541 and subjected to Nd:YAG laser treatment with variable laser parameters. The problem presented in the work can be used to extend the knowledge of the areas of application of ESD coatings, especially in sliding friction pairs.

Cavitation erosion of X5CrNi18-10 austenitic stainless steel alloyed with TiC

Szkodo M.

Advances in Materials Science

2008

Vol. 8, nr 1(15)

159-164

This work presents investigations of cavitation resistance of X5CrNi 18- 10 austenitic stainless steel after alloying its surface by CO2 laser beam. Laser beam machining was performed in two variants. In the first case, surface layer was enriched with TiC in amount of 1.55 % wt. and in the second one in amount of 3.97 % wt. The obtained results revealed that content of 3.97 % wt. TiC caused an increase of plastic deformations resistance of surface under the cavitation loading and simultaneous increase in embrittlement of alloyed layer.