| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications II
|
| Presentation Title |
Fatigue Strength Prediction of As-built Ti-6Al-4V Components, Produced by Electron Beam Melting (EBM) Technology |
| Author(s) |
Md Jamal Mian, Leila Ladani |
| On-Site Speaker (Planned) |
Md Jamal Mian |
| Abstract Scope |
TTi-6Al-4V alloy has been used in various industrial applications. In many of the applications, material experiences cyclic loading and fatigue. It is shown in literature that most of the fatigue cracks initiate from surface defects rather than internal defects. Electron beam melting method has shown to produce rougher surfaces compared to laser beam melting technology, thus aggravating the issue of fatigue. Additionally, in AM parts, parameters such as waviness and roughness depend on direction of built. Therefore, fatigue failure may vary depending on the part build orientation with respect to loading direction. In this study, E-beam built parts are analyzed for surface roughness in different orientations and sides. This analysis is then used as basis for a quantitative method using Murakami’s √area parameter model to calculate the fatigue strength of the parts. The results are compared against literature and were found to correlate well. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |