Szczegóły publikacji
Opis bibliograficzny
Achieving room temperature superplasticity in the Zn-0.5Cu alloy processed via equal channel angular pressing / Wiktor BEDNARCZYK, Jakub KAWAŁKO, Maria WĄTROBA, Piotr BAŁA // Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing ; ISSN 0921-5093. — 2018 — vol. 723, s. 126–133. — Bibliogr. s. 132–133, Abstr. — Publikacja dostępna online od: 2018-03-13. — P. Bała – dod. afiliacja: ACMiN
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 113113 |
|---|---|
| Data dodania do BaDAP | 2018-04-21 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.msea.2018.03.052 |
| Rok publikacji | 2018 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials Science and Engineering, A, Structural Materials: Properties, Microstructure and Processing |
Abstract
The Zn-0.5Cu alloy was investigated in as-cast, homogenized state and after carrying out equal channel angular pressing four times at room temperature via route BC. Microstructure analysis using light microscopy and SEM/EBSD was performed, as well as tensile tests, misorientation angle distribution and texture analysis. The initial microstructure with the average grain size of 560 µm was refined to a grain size of approx. 1 µm. The obtained microstructure consists of uniaxial grains separated mostly by high angle grain boundaries. Mechanical characterization was performed at strain rates from 2 × 10−6 s−1 to 1 s−1 at room temperature. Ultrafine-grained zinc-copper alloy exhibited 510% elongation with the strain rate sensitivity equal 0.31, which was the first observation of room temperature superplasticity in Zn-Cu alloys. Based on the microstructure, misorientation angle and texture analysis, the main operating deformation mechanisms were distinguished for samples deformed at strain rates from 2 × 10−5 s−1 to 10−1 s−1.
