Abstract
To gain knowledge about the applicability of ferritic stainless steels in exhaust pipes and other high temperature applications, mechanical testing of EN 1.4509 (ASTM S43932) and EN 1.4521 (ASTM 444) was conducted at 600 °C and 800 °C. Tensile tests with short high temperature exposure were carried out to determine the material properties in the as-received condition. To study the high temperature service performance and the effects of possible microstructural changes during long-term high temperature exposure, tensile tests were performed for samples that had undergone a 120 h furnace heat treatment at 600 °C. As an example of the effect of exposure time, serrated flow was observed in the tests for as-received EN 1.4509, which indicates dynamic strain aging. The effect, however, disappeared after the 120 h heat treatment, suggesting that notable microstructural changes take place at high temperatures. Also fatigue and high strain rate tensile tests were conducted on the test materials to reveal the effects of high temperature exposure on their properties, microstructure and service performance.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Outokumpu Stainless AB (2008) Avesta research centre: steel grades. Properties and Global Standards
Outokumpu Stainless OY (2010) Inspection certificates for EN1.4509 and EN1.4521 Unpublished
Juuti TJ, Karjalainen LP, Heikkinen E-P (2012) Precipitation of Si and its influence on mechanical properties of type 441 stainless sSteel. Adv Mater Res 409:690–695
Juuti T, Karjalainen P, Rovatti L, Heikkinen EP, Pohjanne P (2011) Contribution of Mo and Si to laves-phase precipitation in type 444 steel and its effect on steel properties. In: Proceedings of 7th European stainless steel conference, Como, 21–23 Sep 2011
Sello MP, Stumpf WE (2011) Laves phase precipitation and its transformation kinetics in the ferritic stainless steel type AISI 441. Mater Sci Eng A 528:1840–1847
Yilmaz A (2011) The Portevin–Le Chatelier effect, a review of experimental findings. Sci Technol Adv Mater 12:1–16
Bross S, Hähner P, Steck EA (2003) Mesoscopic simulations of dislocation motion in dynamic strain ageing alloys. Comput Mater Sci 26:46–55
Choudhary BK (2013) Influence of strain rate and temperature on serrated flow in 9Cr–1Mo ferritic steel. Mater Sci Eng A 564:303–309
Barisic B, Pepelnjak T, Math MD (2008) Predicting of the Lüders’ bands in the processing of TH material in computer environment by means of stochastic modeling. J Mater Process Technol 203:154–165
Acknowledgements
This research work has been done within DEMAPP (Demanding Applications) research program which is part of FIMECC Ltd. (Finnish Metals and Engineering Competence Cluster). Financial support has been obtained from Tekes (Finnish Funding Agency for Technology and Innovation).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Östman, K., Isakov, M., Nyyssönen, T., Kuokkala, VT. (2014). Temperature and Strain Rate Effects on the Mechanical Behavior of Ferritic Stainless Steels. In: Antoun, B., et al. Challenges In Mechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials, Volume 2. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-00852-3_18
Download citation
DOI: https://doi.org/10.1007/978-3-319-00852-3_18
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-00851-6
Online ISBN: 978-3-319-00852-3
eBook Packages: EngineeringEngineering (R0)