- Tytuł:
- The Influence of the Laser Beam Fluence on Change in Microstructure, Microhardness and Phase Composition of Feb-Fe2B Surface Layers Produced on Vanadis-6 Steel
- Autorzy:
-
Bartkowska, A.
Jurči, P.
Hudáková, M.
Bartkowski, D.
Kusý, M.
Przestacki, D. - Powiązania:
- https://bibliotekanauki.pl/articles/352487.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
diode laser
boronizing
laser modification
microstructure
Vanadis steel - Opis:
- The paper presents the study results of laser modification of Vanadis-6 steel after diffusion boronized. The influence of laser beam fluence on selected properties was investigated. Diffusion boronizing lead to formation the FeB and Fe2B iron borides. After laser modification the layers were consisted of: remelted zone, heat affected zone and substrate. It was found that increase of laser beam fluence have influence on increase in dimensions of laser tracks. In the thicker remelting zone, the primary dendrites and boron eutectics were detected. In the thinner remelting zone the primary carbo-borides and eutectics were observed. In obtained layers the FeB, Fe2B, Fe3B0.7C0.3 and Cr2B phases were detected. Laser remelting process caused obtained the mild microhardness gradient from the surface to the substrate. In the remelted zone was in the range from 1800 HV0.1 to 1000 HV0.1. It was found that the laser beam fluence equal to 12.7 J/mm2 was most favorable. Using this value, microhardness was relatively high and homogeneous.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 2; 791-800
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki