- Tytuł:
- Analysis of Tilted Columnar Dendrites at Grain Boundaries During Wire and Laser Additive Manufacturing: a Phase-Field Study
- Autorzy:
-
Zong, Nanfu
Sun, Weizhao
Liang, Xinghong
Jing, Tao - Powiązania:
- https://bibliotekanauki.pl/articles/27313866.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polska Akademia Nauk. Czasopisma i Monografie PAN
- Tematy:
-
wire and laser additive manufacturing
tilted columnar dendrites
overgrowth behavior
phase field simulation
grain boundary - Opis:
- Tilted columnar dendritic morphologies are usually existed in wire and laser additive manufactured parts of GH3039 alloy. Overgrowth behaviors induced by the tilted dendritic arrays with a large tilted angle, and the effect of the angle between the growth direction and the direction vertical locally to the solid substrate on primary spacing, solute concentration and morphological evolution have been investigated at both the converging and the diverging grain boundaries through the phase-field simulation. The formation of cracking depends on solidification behaviors including columnar dendrites growth and micro-segregation in the interdendritic region. Furthermore, the effect of the tilted columnar dendrites on the susceptibility of crack is investigated during wire and laser additive manufacturing.
- Źródło:
-
Archives of Metallurgy and Materials; 2023, 68, 2; 469--475
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł