Influence of silicon and cobalt laser alloying on the microstructure and nanomechanical properties of the gray cast iron surface layer
[ 1 ] Instytut Maszyn Roboczych i Pojazdów Samochodowych, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ P ] employee
2022
scientific article
english
- laser alloying
- silicon
- cobalt
- flake iron
EN The aim of the research was to modify the surface layer of flake iron by laser alloying with composition of elements: Si and Co and the evaluation of the obtained effects (regarding the changes in the surface layer microstructure and its chosen properties). In the first part, the treatment consist on covering the cast iron surface with the alloying composition layer, and in the second part – heating of this surface with laser beam using molecular laser. The treatment effects were estimated with: SEM, EDS, hardness tester, nanoindentation tester and surface profile device. It was stated (among others), that the alloyed zone in the surface layer flake iron after performed laser treatment was gained and it was characterized by following features (in comparison to the core material): fine and homogeneous microstructure with some similarities to the hardened white cast iron, presence of Co and increased amount of Si. It was noticed that such properties as hardness and Young’s modulus have been increased.
30.12.2022
13 - 20
CC BY (attribution alone)
open journal
final published version
at the time of publication
20