Simultaneous enhancement of strength and fatigue crack growth behavior of nanocrystalline steels by annealing
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
Autoren
Organisationseinheiten
Externe Organisationseinheiten
- Erich-Schmid-Institut für Materialwissenschaft der Österreichischen Akademie der Wissenschaften
Abstract
Nanocrystalline materials tend to have an inferior fatigue crack-growth behavior, compared to coarser-grained counterparts, due to the loss of crack-closure effects. Strategies to mitigate this effect are widely unknown as grain-refinement changes the strength, however, often also the fracture-mode and cyclic material behavior so that the effect of individual parameters is difficult to discriminate. To address this issue, the fatigue crack-growth behavior of a nanocrystalline austenitic-steel (316L) in two conditions with different strength but comparable grain-size is investigated. The increased strength level, realized by an annealing treatment, leads to an improvement of the fatigue crack-growth behavior.
Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 39-43 |
| Seitenumfang | 5 |
| Fachzeitschrift | Scripta Materialia |
| Jahrgang | 139.2017 |
| Ausgabenummer | October |
| Frühes Online-Datum | 11 Juli 2017 |
| DOIs | |
| Status | Veröffentlicht - 1 Okt. 2017 |
