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Temperature dependent cyclic mechanical properties of a hot work steel after time and temperature dependent softening

  • In this paper, the temperature dependent cyclic mechanical properties of the martensitic hot work tool steel 1.2367 after tempering are investigated. To this end, hardness measurements as well as monotonic and cyclic tests at temperatures in the range from room temperature to 650 °C are performed on material tempered for different tempering times and temperatures. To describe the observed time andIn this paper, the temperature dependent cyclic mechanical properties of the martensitic hot work tool steel 1.2367 after tempering are investigated. To this end, hardness measurements as well as monotonic and cyclic tests at temperatures in the range from room temperature to 650 °C are performed on material tempered for different tempering times and temperatures. To describe the observed time and temperature dependent softening during tempering a kinetic model for the evolution of the mean size of secondary carbides based on Ostwald ripening is developed. Furthermore, mechanism-based as well as phenomenological relations for the cyclic mechanical properties of the Ramberg-Osgood model depending on carbide size and temperature are introduced. A good overall agreement of the measured and the calculated stress-strain hysteresis loops for different temperatures and heat treatments is obtained using the determined material properties of the kinetic and mechanical model.show moreshow less

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Metadaten
Document Type:Article (reviewed)
Zitierlink: https://opus.hs-offenburg.de/3112
Bibliografische Angaben
Title (English):Temperature dependent cyclic mechanical properties of a hot work steel after time and temperature dependent softening
Author:Andreas JilgStaff MemberGND, Thomas SeifertStaff MemberORCiDGND
Year of Publication:2018
Place of publication:Amsterdam
Publisher:Elsevier
First Page:96
Last Page:102
Parent Title (English):Materials Science and Engineering: A
Volume:721
ISSN:0921-5093
DOI:https://doi.org/10.1016/j.msea.2018.02.048
Language:English
Inhaltliche Informationen
Institutes:Fakultät Maschinenbau und Verfahrenstechnik (M+V)
Institutes:Bibliografie
DDC classes:600 Technik, Medizin, angewandte Wissenschaften
GND Keyword:Mikrostruktur; Plastizität; Stahl
Tag:Hot work tool steel; Ostwald ripening; Particle hardening; Ramberg-Osgood relationship; Thermal softening
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt