Microstructure of selective laser melted AlSi10Mg alloy
Tsinghua University · Stockholm University
Abstract
The influence of laser power during selective laser melting (SLM) on the grain morphology and texture component in AlSi10Mg alloy has been investigated, using electron backscattered diffraction (EBSD). Both equiaxed and columnar grains were observed. The formation of equiaxed grains was attributed to the huge thermal gradient on the border of melt pool and the columnar to equiaxed transition (CET) occurred in front of the columnar grains. The grain size of low laser power sample was found smaller than that of higher ones. A fine pseudoeutectic structure, in which Si existed as fibrous, was observed because of the high cooling rate. This paper, from a new angle, explained the formations of three different zones…
Citation impact
- FWCI
- 31.27
- Percentile
- 100%
- References
- 45
Authors
5Topics & keywords
- Equiaxed crystals
- Liquidus
- Materials science
- Solidus
- Electron backscatter diffraction
- Texture (cosmology)
- Microstructure
- Alloy