Evolution of Microstructure during Isothermal Treatments of a Duplex-Austenitic 0.66C11.4Mn.9.9Al Low-Density Forging Steel and Effect on the Mechanical Properties
dc.contributor.author | Kaltzakorta, Idurre | |
dc.contributor.author | Gutierrez, Teresa | |
dc.contributor.author | Elvira, Roberto | |
dc.contributor.author | Jimbert Lacha, Pedro José ![]() | |
dc.contributor.author | Guraya Díez, María Teresa | |
dc.date.accessioned | 2021-03-02T12:52:58Z | |
dc.date.available | 2021-03-02T12:52:58Z | |
dc.date.issued | 2021-01-26 | |
dc.identifier.citation | Metals 11(2) : (2021) // Article ID 214 | es_ES |
dc.identifier.issn | 2075-4701 | |
dc.identifier.uri | http://hdl.handle.net/10810/50422 | |
dc.description.abstract | In the last decades, low-density steels for forging have increasing interest in the automotive industry, and good mechanical properties are required for their real application. This paper describes the results obtained for a 0.66C11.4Mn9.9Al duplex austenitic low-density steel after applying a set of isothermal treatments at different combinations of time and temperature, aimed to promote kappa carbide precipitation, and improve the mechanical properties obtained with a water quenching treatment. The effects of the different isothermal treatments on the microstructure and on the mechanical properties have been analyzed and compared to those obtained from a quenching heat treatment. We found that isothermal treatments in the range temperature between 550–750 °C promoted the profuse precipitation of coarse kappa carbides at grain boundaries, which dramatically reduced the ductility of the alloy, whereas a traditional quenching treatment resulted in a better combination of ductility and mechanical strength. | es_ES |
dc.description.sponsorship | This research has been carried out with a financial grant of the Basque Government under its ELKARTEK Research Program, KK-2016/00029-ABADE project and KK-2018/00016-COFADEN project. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | low density steels | es_ES |
dc.subject | forging | es_ES |
dc.subject | kappa carbide | es_ES |
dc.subject | FeCMnAl | es_ES |
dc.title | Evolution of Microstructure during Isothermal Treatments of a Duplex-Austenitic 0.66C11.4Mn.9.9Al Low-Density Forging Steel and Effect on the Mechanical Properties | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2021-02-26T14:42:05Z | |
dc.rights.holder | 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2075-4701/11/2/214/htm | es_ES |
dc.identifier.doi | 10.3390/met11020214 | |
dc.departamentoes | Expresión gráfica y proyectos de ingeniería | |
dc.departamentoes | Ingeniería Minera y Metalúrgica y Ciencia de los Materiales | |
dc.departamentoeu | Adierazpen grafikoa eta ingeniaritzako proiektuak | |
dc.departamentoeu | Meatze eta metalurgia ingeniaritza materialen zientzia |
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Except where otherwise noted, this item's license is described as 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).