High-temperature low-cycle fatigue behavior of novel austenitic ODS steels

Luis Straßberger; Ankur Chauhan; Tim Gräning; Steffen Czink; Jarir Aktaa

doi:10.1016/j.ijfatigue.2016.08.018

High-temperature low-cycle fatigue behavior of novel austenitic ODS steels

Luis Straßberger, Ankur Chauhan, Tim Gräning, Steffen Czink, Jarir Aktaa

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The focus of this study is to investigate the low-cycle fatigue (LCF) behavior of two newly developed austenitic 17Cr13Ni–W ODS steels. The LCF tests were performed at 650 °C with strain amplitudes ranging from 0.4 to 0.9%. The cyclic stress response and the cyclic strain-life resistance were analyzed in detail and compared with two non-ODS austenitic stainless steels (304 and 316L(N)) and a ferritic-martensitic ODS steel based on T91. The austenitic ODS steels showed stabilized cyclic response after a slight initial cyclic hardening. Due to their high strength at elevated temperatures, the strain-life resistance became superior with decreasing total strain amplitude compared to the other materials considered.

Original language	English
Pages (from-to)	194-200
Number of pages	7
Journal	International Journal of Fatigue
Volume	93
DOIs	https://doi.org/10.1016/j.ijfatigue.2016.08.018
State	Published - Dec 1 2016
Externally published	Yes

Funding

The present work was supported by the Helmholtz Association , Germany within the Portfolio Topic ‘Materialforschung für die zukünftige Energieversorgung’.

Funders	Funder number
Helmholtz Association

Keywords

Austenitic steel
High-temperature application
LCF behavior
ODS steel

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10.1016/j.ijfatigue.2016.08.018

Cite this

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title = "High-temperature low-cycle fatigue behavior of novel austenitic ODS steels",

abstract = "The focus of this study is to investigate the low-cycle fatigue (LCF) behavior of two newly developed austenitic 17Cr13Ni–W ODS steels. The LCF tests were performed at 650 °C with strain amplitudes ranging from 0.4 to 0.9%. The cyclic stress response and the cyclic strain-life resistance were analyzed in detail and compared with two non-ODS austenitic stainless steels (304 and 316L(N)) and a ferritic-martensitic ODS steel based on T91. The austenitic ODS steels showed stabilized cyclic response after a slight initial cyclic hardening. Due to their high strength at elevated temperatures, the strain-life resistance became superior with decreasing total strain amplitude compared to the other materials considered.",

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AU - Straßberger, Luis

AU - Chauhan, Ankur

AU - Gräning, Tim

AU - Czink, Steffen

AU - Aktaa, Jarir

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The focus of this study is to investigate the low-cycle fatigue (LCF) behavior of two newly developed austenitic 17Cr13Ni–W ODS steels. The LCF tests were performed at 650 °C with strain amplitudes ranging from 0.4 to 0.9%. The cyclic stress response and the cyclic strain-life resistance were analyzed in detail and compared with two non-ODS austenitic stainless steels (304 and 316L(N)) and a ferritic-martensitic ODS steel based on T91. The austenitic ODS steels showed stabilized cyclic response after a slight initial cyclic hardening. Due to their high strength at elevated temperatures, the strain-life resistance became superior with decreasing total strain amplitude compared to the other materials considered.

AB - The focus of this study is to investigate the low-cycle fatigue (LCF) behavior of two newly developed austenitic 17Cr13Ni–W ODS steels. The LCF tests were performed at 650 °C with strain amplitudes ranging from 0.4 to 0.9%. The cyclic stress response and the cyclic strain-life resistance were analyzed in detail and compared with two non-ODS austenitic stainless steels (304 and 316L(N)) and a ferritic-martensitic ODS steel based on T91. The austenitic ODS steels showed stabilized cyclic response after a slight initial cyclic hardening. Due to their high strength at elevated temperatures, the strain-life resistance became superior with decreasing total strain amplitude compared to the other materials considered.

KW - Austenitic steel

KW - High-temperature application

KW - LCF behavior

KW - ODS steel

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JO - International Journal of Fatigue

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ER -

High-temperature low-cycle fatigue behavior of novel austenitic ODS steels

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Keywords

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