Texture evolution in stainless steel processed by selective laser melting and annealing
| Autor: | V. Brotan, Markus Bambach, Omar Fergani, María Teresa Pérez-Prado |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Annealing (metallurgy) Mechanical Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Epitaxy Microstructure Laser 01 natural sciences law.invention Mechanics of Materials law 0103 physical sciences Thermal General Materials Science Grain boundary Selective laser melting Composite material 0210 nano-technology Laser processing |
| Zdroj: | Materials Science and Technology. 34:2223-2230 |
| ISSN: | 1743-2847 0267-0836 |
| DOI: | 10.1080/02670836.2018.1523518 |
| Popis: | This work analyses the texture and microstructure gradients emerging in a 316L stainless steel processed by selective laser melting, using an island scan strategy, followed by annealing. Laser processing leads to the alignment of different crystallographic directions with the build direction at the mid and top layers, as well as to gradual structural coarsening. Annealing triggers discontinuous recrystallisation at highly strained regions, such as grain boundaries and laser track centre lines, resulting in the onset of new texture gradients. The development of the mentioned texture gradients is rationalised based on a competition between thermal gradient-driven growth and epitaxial growth. |
| Databáze: | OpenAIRE |
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