Szczegóły publikacji
Opis bibliograficzny
Controlled grain refinement of biodegradable Zn-Mg alloy: the effect of magnesium alloying and multi-pass hydrostatic extrusion preceded by hot extrusion / Anna Jarzębska, Magdalena Bieda, Łukasz Maj, Robert Chulist, Daniel WOJTAS, Martyna Strąg, Bartosz SUŁKOWSKI, Sylwia Przybysz, Wacław Pachla, Krzysztof Sztwiertnia // Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials ; ISSN 1073-5623. — 2020 — vol. 51 iss. 12, s. 6784–6796. — Bibliogr. s. 6795–6796. — Publikacja dostępna online od: 2020-10-07. — R. Chulist – afiliacja: Instytut Metalurgii i Inżynierii Materiałowej PAN, Kraków
Autorzy (10)
- Jarzębska Anna
- Bieda Magdalena
- Maj Łukasz
- Chulist Robert
- AGHWojtas Daniel
- Strąg Martyna
- AGHSułkowski Bartosz
- Przybysz-Gloc Sylwia
- Pachla Wacław
- Sztwiertnia Krzysztof
Dane bibliometryczne
| ID BaDAP | 131130 |
|---|---|
| Data dodania do BaDAP | 2020-11-21 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s11661-020-06032-4 |
| Rok publikacji | 2020 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Metallurgical and Materials Transactions, A, Physical Metallurgy and Materials Science |
Abstract
To satisfy the most stringent criteria in terms of new cardiovascular stents, pure Zn was alloyed with 1 wt pct of Mg and subsequently subjected to plastic deformation, using conventional hot extrusion followed by multi-pass hydrostatic extrusion. A detailed microstructural and textural characterization of the obtained materials was conducted, and mechanical properties were assessed at each pass of deformation process. In contrast to pure Zn, hydrostatically extruded low-alloyed Zn is characterized by a remarkable increase in strength and ductility (YS = 383 MPa, E = 23 pct), exceeding the values needed for stents. Such behavior is associated with a dual microstructure containing fine-grained Zn, alternatively arranged with bands of a fragmented eutectic. Extensive grain refinement was achieved due to the process of continuous dynamic recrystallization. Hydrostatic extrusion changes the initial < 10 (1) over bar0 > fiber texture to a < 0002 > and < 10 (1) over bar1 > double fiber texture in which the < 0002 > component decreases with each pass of hydrostatic extrusion. The gradual evolution of texture components was simulated using a visco-plastic self-consistent model, which confirmed that, during hydrostatic extrusion, secondary slip systems were activated involving mostly the pyramidal one.
