Szczegóły publikacji
Opis bibliograficzny
Stress distribution correlated with damage in duplex stainless steel studied by synchrotron diffraction during plastic necking / Y. Zhao, L. Le Joncour, A. BACZMAŃSKI, E. Gadalińska, S. WROŃSKI, B. Panicaud, M. François, C. Braham, T. Buslaps // Materials and Design ; ISSN 0264-1275 . — Tytuł poprz.: Materials in Engineering ; ISSN: 0261-3069. — 2017 — vol. 113, s. 157–168. — Bibliogr. s. 167–168, Abstr. — Publikacja dostępna online od: 2016-10-10
Autorzy (9)
- Zhao Y.
- le Joncour Lea
- AGHBaczmański Andrzej
- Gadalińska Elżbieta
- AGHWroński Sebastian
- Panicaud Benoit
- François Manuel
- Braham Chedly
- Buslaps Thomas
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 102345 |
|---|---|
| Data dodania do BaDAP | 2016-11-28 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.matdes.2016.10.014 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials & Design |
Abstract
The goal of this work was the determination of lattice strains distribution in two phases of duplex steel during plastic necking. Subsequently, the stress heterogeneity in the neck was studied in order to determine the reason for the damage initiation and to verify the hypothesis that the damage begins in the ferritic phase. To do this, X-ray synchrotron radiation was used to scan the ‘in situ’ variation of the interplanar spacings along the necking zone for samples subjected to tensile loading. A self-consistent model and FEM simulation were applied for the experimental data interpretation. It was found that for advanced necking the phase lattice strains, especially those measured at some distance from the neck centre, show a large inversion of the loads localised in both phases compared to the undamaged state (the lattice strains in the ferrite become smaller than in the austenite). This effect indicates stress relaxation in the ferrite which is connected with the damage phenomenon. Correlation of the experimental results with the modelling shows that the value of von Mises stress is responsible for the initiation of the ferritic phase softening.
