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http://hdl.handle.net/11375/24383| Title: | Additive manufacturing of a novel Ti-Al-V-Fe alloy using selective laser melting |
| Authors: | Azizi, Hamid Zurob, Hatem Bose, Bipasha Reza Ghiaasiaan, S. Wang, Xiang Coulson, Simon Duz, Vlad Phillion, A.B. |
| Department: | None |
| Keywords: | Rapid solidification;Selective Laser Melting;Powder processing;Titanium alloys;Solidification microstructure |
| Publication Date: | 2018 |
| Abstract: | Ti-1Al-8V-5Fe (Ti-185) and other Fe containing β-Ti alloys are attractive because of their high strength and low cost. These alloys, however, cannot be produced through ingot casting due to strong Fe segregation and the formation of β flecks. Selective Laser Melting (SLM) was successfully used to produce Ti-185 components starting from elemental Ti and Fe powders, and an Al-V master alloy powder with irregular shape. Microstructure analysis of the as-built components demonstrated that SLM can be used to produce a very fine grain microstructure with nano-scale precipitates and non-detrimental Fe segregation. The findings are interpreted in terms of the rapid solidification conditions during SLM. Compression test results reveal that ultra-high strength and reasonable ductility can be achieved in the as-built as well as heat treated samples. |
| URI: | http://hdl.handle.net/11375/24383 |
| ISSN: | 10.1016/j.addma.2018.04.006 10.1016/j.addma.2018.04.006 |
| Other Identifiers: | 10.1016/j.addma.2018.04.006 |
| Appears in Collections: | Materials Science and Engineering Publications |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2018_AMJ_Azizi_etal.pdf | 5.35 MB | Adobe PDF | View/Open |
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