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Laser additive manufacturing of titanium alloys with various Al contents.
- Source :
- Materials Research Letters; May2023, Vol. 11 Issue 5, p391-398, 8p
- Publication Year :
- 2023
-
Abstract
- Laser powder bed fusion (LPBF) is an additive manufacturing technology for metals. Ti-6Al-4V (Ti64) is a frequently used material for LPBF, but as-built LPBF-Ti64 has poor ductility that limits its usage. Herein, we study how the Al content will affect the microstructure and mechanical properties of LPBF Ti-xAL-4 V alloys (x = 4, 6, 8, wt.%). The materials' strength increases with Al%. Both Ti-4Al-4V (Ti44) and Ti-8Al-4V (Ti84) alloys exhibit higher work hardening and uniform elongation values than Ti64. This outcome is attributed to activation of multiple slip modes in Ti44 and a more heterogeneous microstructure in Ti84. This paper reports that work hardening and uniform elongation values of LPBF Ti-xAl-4 V alloys do not monotonically change with the Al content. Instead, the conventional Ti-6Al-4V exhibits the least values. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21663831
- Volume :
- 11
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Materials Research Letters
- Publication Type :
- Academic Journal
- Accession number :
- 161466076
- Full Text :
- https://doi.org/10.1080/21663831.2023.2165418