Local Strain Hardening of Metal Components by Means of Martensite Generation

verfasst von: Bernd Arno Behrens, Sven Hübner, Anas Bouguecha, Julian Knigge, Kathrin Voges-Schwieger, Katrin Weilandt
Abstract: The emphasis, in respect of content regarding the here presented project, lies within the production of localized reinforcements, by means of transformation-induced α×-martensite formation in solid and sheet metal components. During the forming process of metastable austenitic steels, high-strength martensite areas, next to ductile austenitic regions, are to be adjusted to enable the production of load-adapted components. To this end, extensive basic analyses are also necessary in order to determine the description of the mechanical behavior of α×-martensite structures, as well as to determine the extension of the numerical simulation as regards the structural change. The results achieved within the area of steel forming include the development of a temperable deep-drawing die (T = -35 °C until T = 100 °C) that carefully facilitates structural conversion at a constant forming-degree. Moreover the crash performance, based on transformation-induced martensite structures is improved. So-called Forming Curves (FCs) were developed as a new approach towards the material characterization of structured steel. In bulge forming components, comprised of chrome and nickel steels as well as manganous hard steel, martensite was specifically generated under the use of differing forming parameters. The tool design was aided by Finite Element Analysis (FEA). Moreover, fundamental simulations were carried out in order to calculate the structural change. The modification and extension of a semi-analytical model of the material followed so that the martensite content could be calculated in the previously examined sheet components, as in the massive forming.
Organisationseinheit(en): Institut für Umformtechnik und Umformmaschinen
Typ: Aufsatz in Konferenzband
Seiten: 1-33
Anzahl der Seiten: 33
Publikationsdatum: 19.10.2010
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Ingenieurwesen (insg.)
Elektronische Version(en): https://doi.org/10.4028/www.scientific.net/AMR.137.1 (Zugang: Offen)
: Details im Forschungsportal „Research@Leibniz University“

BibTeX

@inproceedings{b73f568764c84f56b2abe772b40c2274,
title = "Local Strain Hardening of Metal Components by Means of Martensite Generation",
abstract = "The emphasis, in respect of content regarding the here presented project, lies within the production of localized reinforcements, by means of transformation-induced α×-martensite formation in solid and sheet metal components. During the forming process of metastable austenitic steels, high-strength martensite areas, next to ductile austenitic regions, are to be adjusted to enable the production of load-adapted components. To this end, extensive basic analyses are also necessary in order to determine the description of the mechanical behavior of α×-martensite structures, as well as to determine the extension of the numerical simulation as regards the structural change. The results achieved within the area of steel forming include the development of a temperable deep-drawing die (T = -35 °C until T = 100 °C) that carefully facilitates structural conversion at a constant forming-degree. Moreover the crash performance, based on transformation-induced martensite structures is improved. So-called Forming Curves (FCs) were developed as a new approach towards the material characterization of structured steel. In bulge forming components, comprised of chrome and nickel steels as well as manganous hard steel, martensite was specifically generated under the use of differing forming parameters. The tool design was aided by Finite Element Analysis (FEA). Moreover, fundamental simulations were carried out in order to calculate the structural change. The modification and extension of a semi-analytical model of the material followed so that the martensite content could be calculated in the previously examined sheet components, as in the massive forming.",
keywords = "Martensite, Material characterization, Simulation",
author = "Behrens, {Bernd Arno} and Sven H{\"u}bner and Anas Bouguecha and Julian Knigge and Kathrin Voges-Schwieger and Katrin Weilandt",
year = "2010",
month = oct,
day = "19",
doi = "10.4028/www.scientific.net/AMR.137.1",
language = "English",
isbn = "9780878492343",
series = "Advanced Materials Research",
pages = "1--33",
editor = "Heinz Palkowski and Kai-Michael Rudolph",
booktitle = "Creation of High-Strength Structures and Joints by Setting up Local Material Properties (II)",
}