Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 74-77 |
| Seitenumfang | 4 |
| Fachzeitschrift | Manufacturing Letters |
| Jahrgang | 47 |
| Frühes Online-Datum | 12 Feb. 2026 |
| Publikationsstatus | Veröffentlicht - März 2026 |
Abstract
Niobium-zirconium alloys like Nb-1Zr offer high biocompatibility and osteoconductivity, with a lower Young's modulus than Ti-6Al-4V, but their strength is limited due to a coarse grain structure. In this study, alloy strength is enhanced through controlled internal oxidation. Pre-oxidizing Nb-1Zr powder at 620 °C for 0, 60, and 120 min prior to co-extrusion increased 0.2% offset compression yield stress from 829 to 937 MPa. The improved strength is due to a fine-grained structure and high dislocation density. Longer oxidation times increased brittle niobium oxides. Future work will refine oxidation to tailor the properties of these alloys for load-bearing implants.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Werkstoffmechanik
- Ingenieurwesen (insg.)
- Wirtschaftsingenieurwesen und Fertigungstechnik
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in: Manufacturing Letters, Jahrgang 47, 03.2026, S. 74-77.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Co-extrusion of internally oxidized Nb-1Zr: An avenue to new load-bearing implants
AU - Schleich, Julian-Tobias
AU - Siegmund, Julius Max Jakob
AU - Phan, Minh Tien
AU - Pott, Philipp-Cornelius
AU - Maier, Hans Jürgen
AU - Klose, Christian
N1 - Publisher Copyright: © 2026 The Author(s)
PY - 2026/3
Y1 - 2026/3
N2 - Niobium-zirconium alloys like Nb-1Zr offer high biocompatibility and osteoconductivity, with a lower Young's modulus than Ti-6Al-4V, but their strength is limited due to a coarse grain structure. In this study, alloy strength is enhanced through controlled internal oxidation. Pre-oxidizing Nb-1Zr powder at 620 °C for 0, 60, and 120 min prior to co-extrusion increased 0.2% offset compression yield stress from 829 to 937 MPa. The improved strength is due to a fine-grained structure and high dislocation density. Longer oxidation times increased brittle niobium oxides. Future work will refine oxidation to tailor the properties of these alloys for load-bearing implants.
AB - Niobium-zirconium alloys like Nb-1Zr offer high biocompatibility and osteoconductivity, with a lower Young's modulus than Ti-6Al-4V, but their strength is limited due to a coarse grain structure. In this study, alloy strength is enhanced through controlled internal oxidation. Pre-oxidizing Nb-1Zr powder at 620 °C for 0, 60, and 120 min prior to co-extrusion increased 0.2% offset compression yield stress from 829 to 937 MPa. The improved strength is due to a fine-grained structure and high dislocation density. Longer oxidation times increased brittle niobium oxides. Future work will refine oxidation to tailor the properties of these alloys for load-bearing implants.
KW - Co-extrusion
KW - Niobium
KW - Zirconium
KW - Microstructure
KW - Scanning transmission electron microscopy
KW - Compression test
KW - Implant material
UR - http://www.scopus.com/inward/record.url?scp=105030456095&partnerID=8YFLogxK
U2 - 10.1016/j.mfglet.2026.02.003
DO - 10.1016/j.mfglet.2026.02.003
M3 - Article
VL - 47
SP - 74
EP - 77
JO - Manufacturing Letters
JF - Manufacturing Letters
SN - 2213-8463
ER -