- Tytuł:
- Analysis of thermal cycles and phase transformations during multi-pass ARC weld surfacing of steel casts taking into account heat of the weld
- Autorzy:
-
Winczek, J.
Gucwa, M.
Makles, K. - Powiązania:
- https://bibliotekanauki.pl/articles/122834.pdf
- Data publikacji:
- 2018
- Wydawca:
- Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
- Tematy:
-
surface treatment
temperature field
phase transformations
welding
surfacing
obróbka powierzchniowa
przemiany fazowe
pole temperatury
spawanie
napawanie - Opis:
- In this work, a model of phase transformations during multipass weld surfaced steel casts is presented. In the temperature field calculation algorithm, the influence of the heat of overlaying beads and a self-cooling of previously overlayed beads have been taken into account. The fusion area, full and part transformation zones, by solidus, A1 and A3 and A A1 temperatures has been determined, respectively. The temperatures of the beginning and the end of the phase changes during cooling were determined on the basis of the time-temperature-transformation welding diagram. In the phase change kinetic description, the JMAK law and KM formula were used. Theoretical considerations are illustrated by example of volume share calculations of particular structural components during the weld surfaced 230-450 W steel cast. The results of computation in the graphical forms are presented: welding thermal cycle diagrams and structural share change histories at selected points, as well as temperature and the phase share distributions in cross section.
- Źródło:
-
Journal of Applied Mathematics and Computational Mechanics; 2018, 17, 1; 89-100
2299-9965 - Pojawia się w:
- Journal of Applied Mathematics and Computational Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł