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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 6 of 6 (0.054 seconds)

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1

Erweiterte Methoden zur Ermittlung gesicherter Fliessspannungsdaten im Zylinderstauchversuch bei hohen Umformgeschwindigkeiten /

Rehrmann, Torsten. January 2006 (has links)
Zugl.: Aachen, Techn. Hochsch., Diss., 2006.
2

Dynamische Rekristallisation unter konstanten und transienten Umformbedingungen /

Frommert, Matthias Moritz. January 2008 (has links)
Techn. Hochsch., Diss.--Aachen, 2007.
3

Dynamische Rekristallisation unter konstanten und transienten Umformbedingungen

Frommert, Matthias Moritz January 2007 (has links)
Zugl.: Aachen, Techn. Hochsch., Diss., 2007
4

Mechanisches Verhalten metallischer Werkstoffe über weite Bereiche der Dehnung, der Dehnrate und der Temperatur

Emde, Tobias January 2008 (has links)
Zugl.: Aachen, Techn. Univ., Diss., 2008
5

Untersuchung des Einflusses unterschiedlicher Prozessbedingungen auf die Reibung bei Umformprozessen /

Baouni, Mohammedd Subhiy Husein al- January 2009 (has links)
Zugl.: Aachen, Techn. Hochsch., Diss., 2009.
6

Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel

Härtel, Sebastian, Awiszus, Birgit, Graf, Marcel, Nitsche, Alexander, Böhme, Marcus, Wagner, Martin F.-X., Jirkova, Hana, Masek, Bohuslav 31 July 2019 (has links)
This paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels. Differences in austenite grain size distribution may result, for example, from uneven heating rates of semi-finished products prior to a forging process. In order to quantify this influence, a carefully defined heat treatment of a cylindrical specimen made of the Q-P-capable 42SiCr steel was performed in a dilatometer. Different austenite grain sizes were adjusted by a pre-treatment before the actual Q-P process. The resulting mechanical properties were determined using the upsetting test and the corresponding microstructures were analyzed by scanning electron microscopy (SEM). These investigations show that a larger austenite grain size prior to Q-P processing leads to a slightly lower strength as well as to a coarser martensitic microstructure in the Q-P-treated material.
info:eu-repo/classification/ddc/670
ddc:670

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