Softening and relaxation of GR.91 steel in creep-fatigue conditions

Jaromír Janoušek; Maxime Sauzay; Rami Pohja; Stefan Holmström

Softening and relaxation of GR.91 steel in creep-fatigue conditions

Jaromír Janoušek, Maxime Sauzay, Rami Pohja, Stefan Holmström

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

The data presented here were obtained as part of the European FP7 MatISSE project to model the softening and relaxation behaviour of Grade 91 steel under creep-fatigue loading because this type of thermal loading is a major degradation mechanism in fast reactors. The supporting tests were focused on strain controlled low cycle fatigue tests with different strain amplitudes (ϵ_a = 0.45 %, 0.35 % and 0.25 %) and different tension hold times (1 and 12 hours) for temperature 600°C. The results were compared with results for 24 hour hold time from another testing laboratory (VTT). The results were evaluated with respect to the number of cycles, N, and also as a function of the cumulative plastic strain, p(N).

Original language	English
Title of host publication	27th International Conference on Metallurgy and Materials, Conference Proceedings
Subtitle of host publication	METAL 2018
Publisher	TANGER Ltd.
Pages	536-541
ISBN (Electronic)	978-80-87294-84-0
Publication status	Published - 2018
MoE publication type	A4 Article in a conference publication
Event	27th International Conference on Metallurgy and Materials, METAL 2018 - Brno, Czech Republic Duration: 23 May 2018 → 25 May 2018

Conference

Conference	27th International Conference on Metallurgy and Materials, METAL 2018
Country/Territory	Czech Republic
City	Brno
Period	23/05/18 → 25/05/18

Keywords

Creep-Fatigue
P91
Relaxation
Softening

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https://www.confer.cz/metal/2018/1026-softening-and-relaxation-of-gr-91-steel-in-creep-fatigue-conditionsLicence: CC BY

Cite this

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title = "Softening and relaxation of GR.91 steel in creep-fatigue conditions",

abstract = " The data presented here were obtained as part of the European FP7 MatISSE project to model the softening and relaxation behaviour of Grade 91 steel under creep-fatigue loading because this type of thermal loading is a major degradation mechanism in fast reactors. The supporting tests were focused on strain controlled low cycle fatigue tests with different strain amplitudes (ϵa = 0.45 %, 0.35 % and 0.25 %) and different tension hold times (1 and 12 hours) for temperature 600°C. The results were compared with results for 24 hour hold time from another testing laboratory (VTT). The results were evaluated with respect to the number of cycles, N, and also as a function of the cumulative plastic strain, p(N). ",

keywords = "Creep-Fatigue, P91, Relaxation, Softening",

author = "Jarom{\'i}r Janou{\v s}ek and Maxime Sauzay and Rami Pohja and Stefan Holmstr{\"o}m",

note = "Funding Information: This work was financially supported by the Ministry of Education, Youth and Sport Czech Republic - project LQ1603 (Research for SUSEN), project LM2015093 (SUSEN) and within the European FP7 MatISSE project, contract nr. 604862.; 27th International Conference on Metallurgy and Materials, METAL 2018 ; Conference date: 23-05-2018 Through 25-05-2018",

year = "2018",

language = "English",

pages = "536--541",

booktitle = "27th International Conference on Metallurgy and Materials, Conference Proceedings",

publisher = "TANGER Ltd.",

address = "Czech Republic",

}

Janoušek, J, Sauzay, M, Pohja, R & Holmström, S 2018, Softening and relaxation of GR.91 steel in creep-fatigue conditions. in 27th International Conference on Metallurgy and Materials, Conference Proceedings: METAL 2018. TANGER Ltd., pp. 536-541, 27th International Conference on Metallurgy and Materials, METAL 2018, Brno, Czech Republic, 23/05/18. <https://www.confer.cz/metal/2018/1026-softening-and-relaxation-of-gr-91-steel-in-creep-fatigue-conditions>

Softening and relaxation of GR.91 steel in creep-fatigue conditions. / Janoušek, Jaromír; Sauzay, Maxime; Pohja, Rami et al.
27th International Conference on Metallurgy and Materials, Conference Proceedings: METAL 2018. TANGER Ltd., 2018. p. 536-541.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Softening and relaxation of GR.91 steel in creep-fatigue conditions

AU - Janoušek, Jaromír

AU - Sauzay, Maxime

AU - Pohja, Rami

AU - Holmström, Stefan

N1 - Funding Information: This work was financially supported by the Ministry of Education, Youth and Sport Czech Republic - project LQ1603 (Research for SUSEN), project LM2015093 (SUSEN) and within the European FP7 MatISSE project, contract nr. 604862.

PY - 2018

Y1 - 2018

N2 - The data presented here were obtained as part of the European FP7 MatISSE project to model the softening and relaxation behaviour of Grade 91 steel under creep-fatigue loading because this type of thermal loading is a major degradation mechanism in fast reactors. The supporting tests were focused on strain controlled low cycle fatigue tests with different strain amplitudes (ϵa = 0.45 %, 0.35 % and 0.25 %) and different tension hold times (1 and 12 hours) for temperature 600°C. The results were compared with results for 24 hour hold time from another testing laboratory (VTT). The results were evaluated with respect to the number of cycles, N, and also as a function of the cumulative plastic strain, p(N).

AB - The data presented here were obtained as part of the European FP7 MatISSE project to model the softening and relaxation behaviour of Grade 91 steel under creep-fatigue loading because this type of thermal loading is a major degradation mechanism in fast reactors. The supporting tests were focused on strain controlled low cycle fatigue tests with different strain amplitudes (ϵa = 0.45 %, 0.35 % and 0.25 %) and different tension hold times (1 and 12 hours) for temperature 600°C. The results were compared with results for 24 hour hold time from another testing laboratory (VTT). The results were evaluated with respect to the number of cycles, N, and also as a function of the cumulative plastic strain, p(N).

KW - Creep-Fatigue

KW - P91

KW - Relaxation

KW - Softening

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M3 - Conference article in proceedings

AN - SCOPUS:85059432756

SP - 536

EP - 541

BT - 27th International Conference on Metallurgy and Materials, Conference Proceedings

PB - TANGER Ltd.

T2 - 27th International Conference on Metallurgy and Materials, METAL 2018

Y2 - 23 May 2018 through 25 May 2018

ER -

Softening and relaxation of GR.91 steel in creep-fatigue conditions

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Keywords

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