Abstract
The role of processing parameters on the densification mechanism and microstructural evolution in laser sintered Al-12Si powder has been explored. It was established that both the densification mechanism and microstructural evolution in laser sintered Al-12Si powder were controlled by the specific laser energy input. Analysis of the cross-section of laser sintered microstructures of Al-12Si powders indicated that the tops of the grains in the previous layer are partially re-melted and then undergo epitaxial growth in the next layer where the heat affected zones (HAZ) grain boundaries and solidification grain boundaries (SGBs) are continuous along the fusion boundary.
| Original language | English |
|---|---|
| Pages (from-to) | 113-121 |
| Number of pages | 9 |
| Journal | Journal of Materials Processing Technology |
| Volume | 211 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 1 2011 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Metals and Alloys
- Industrial and Manufacturing Engineering
- Computer Science Applications