in the repository
URN to cite this document: urn:nbn:de:bvb:703-epub-9080-9
Title data
Daoud, Haneen ; Kulig, Agata ; Schmidt, Kim ; Weiser, Johannes ; Fichtl, Maximilian ; Prihodovsky, Andrey ; Glatzel, Uwe:
Wire-Laser-Directed Energy Deposition of Ti-6Al-4V Alloy Under Vacuum : Effect of Substrate Preheating on the Refinement of Prior-β Grain Structure.
In: Advanced Engineering Materials.
Vol. 28
(2026)
Issue 1
.
- e202502223.
ISSN 1527-2648
DOI der Verlagsversion: https://doi.org/10.1002/adem.202502223
![[thumbnail of Adv Eng Mater - 2025 - Daoud - Wire‐Laser‐Directed Energy Deposition of Ti‐6Al‐4V Alloy Under Vacuum Effect of Substrate.pdf]](https://epub.uni-bayreuth.de/style/images/fileicons/application_pdf.png) |
|
||||||||
|
Download (7MB)
|
Project information
| Project title: |
Project's official title Project's id Open Access Publizieren No information |
|---|
Abstract
The effect of stress relieving and substrate preheating on the grain refinement of additively manufactured Ti-6Al-4V at room and elevated temperatures is investigated. Specimens are produced using wire-based directed energy deposition under vacuum conditions. The microstructure is characterized by scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD). Tensile tests are conducted at room temperature and at 700 °C. The as-deposited specimens exhibit a heterogeneous microstructure consisting of fine acicular α′-martensite and fine Widmanstätten structures. Substrate preheating at 600 °C enables a complete transition from a columnar grain structure in the as-deposited condition to a refined prior-β grain structure. The as-substrate-heated specimens show the highest tensile strength of 1010 MPa with 3% elongation at room temperature and 600 MPa with 15% elongation at 700 °C.
Further data
| Item Type: | Article in a journal |
|---|---|
| Keywords: | DED-LB/M; mechanical properties; prior-β grain; refinement; titanium alloys; vacuum additive manufacturing |
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Chair Metals and Alloys > Chair Metals and Alloys - Univ.-Prof. Dr.-Ing. Uwe Glatzel Research Institutions > Affiliated Institutes > New Materials Bayreuth GmbH Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Metals and Alloys Research Institutions Research Institutions > Affiliated Institutes |
| Language: | English |
| Originates at UBT: | Yes |
| URN: | urn:nbn:de:bvb:703-epub-9080-9 |
| Date Deposited: | 07 Apr 2026 11:06 |
| Last Modified: | 07 Apr 2026 11:06 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/9080 |
Download Statistics