Abstract
The microstructure of parts produced by sective laser melting of Ti-6Al-4V is typically martensite in elongated prior β grains, which leads to anisotropic mechanical properties. A heat treatment can reduce this anisotropy by making these grains more equiaxed. In this work, simulations are performed wherein the evolution of the microstructure during a heat treatment is modelled using a cellular automata method. The results obtained from this simulation are compared to experimentally obtained micrographs. The simulated microstructure shows a similar evolution of the prior β grains from columnar to equiaxed, although the average diameter of the grains is slightly smaller in the simulations.
| Original language | English |
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| Title of host publication | Proceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology |
| Editors | D. Billington , R. K. Leach, D. Phillips , O. Riemer , E. Savio |
| Publisher | The European Society for Precision Engineering and Nanotechnology |
| Publication date | 2018 |
| Pages | 249-250 |
| ISBN (Electronic) | 9780995775121 |
| Publication status | Published - 2018 |
| Event | 18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) - Venice, Italy Duration: 4 Jun 2018 → 8 Jun 2018 |
Conference
| Conference | 18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) |
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| Country/Territory | Italy |
| City | Venice |
| Period | 04/06/2018 → 08/06/2018 |
Keywords
- Microstructural modelling
- Cellular Automata
- Ti-6Al-4V
- Selective laser melting
- Heat Treatment