English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/142137
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

A Constitutive Relationship between Fatigue Limit and Microstructure in Nanostructured Bainitic Steels

AuthorsMueller, Inga; Rementería, Rosalía; García Caballero, Francisca ; Kuntz, Matthias; Sourmail, Thomas; Kerscher, Eberhard
Issue Date14-Oct-2016
PublisherMultidisciplinary Digital Publishing Institute
CitationMaterials 9(10): 831 (2016)
AbstractThe recently developed nanobainitic steels show high strength as well as high ductility. Although this combination seems to be promising for fatigue design, fatigue properties of nanostructured bainitic steels are often surprisingly low. To improve the fatigue behavior, an understanding of the correlation between the nanobainitic microstructure and the fatigue limit is fundamental. Therefore, our hypothesis to predict the fatigue limit was that the main function of the microstructure is not necessarily totally avoiding the initiation of a fatigue crack, but the microstructure has to increase the ability to decelerate or to stop a growing fatigue crack. Thus, the key to understanding the fatigue behavior of nanostructured bainite is to understand the role of the microstructural features that could act as barriers for growing fatigue cracks. To prove this hypothesis, we carried out fatigue tests, crack growth experiments, and correlated these results to the size of microstructural features gained from microstructural analysis by light optical microscope and EBSD-measurements. Finally, we were able to identify microstructural features that influence the fatigue crack growth and the fatigue limit of nanostructured bainitic steels.
URIhttp://hdl.handle.net/10261/142137
DOIhttp://dx.doi.org/10.3390/ma9100831
Identifiersdoi: 10.3390/ma9100831
Appears in Collections:(CENIM) Artículos
Files in This Item:
File Description SizeFormat 
materials-09-00831.pdf12,93 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.