Effect of Strain Range and Hold Time on High Temperature Fatigue Life of G17CRMOV5-10 Cast Alloy Steel

• Autorzy: Polnik Anna , Matysiak Hubert , Czarnewicz Sławomir , Pakieła Zbigniew

Identyfikatory

DOI

10.2478/fas-2022-0001

• Języki publikacji: EN

Abstrakty

EN

In this work, cast steel G17CrMoV5-10 was investigated. The material subject to investigation as part of this study is commonly used to manufacture steam turbine casings. Modern steam turbines operate under elevated temperature and complex oscillated loads. Thus, the focus of this study was to investigate material under behavior during low cycle fatigue (LCF) test performance at 500°C with and without hold time in tension. During all types of test, cyclic softening of cast steel was noticed. Increasing of total strain rate and applying hold time significantly reduce fatigue life. During hold time, due to temperature and tension the material creep what is confirmed by increasing inelastic stain accommodation.

Słowa kluczowe

EN

fatigue; LCF; hold time; strain; steam turbine

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2022
• Tom: Iss. 14
• Strony: 1--7
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Polnik Anna

• Baker Hughes, al. Krakowska 110/114, 02-256 Warsaw, Poland
• Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland

• https://orcid.org/0000-0002-1706-7549

autor

Matysiak Hubert

• Baker Hughes, al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0002-5848-3274

autor

Czarnewicz Sławomir

• Łukasiewicz Research Network, Institute of Aviation, al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0002-7530-6659

autor

Pakieła Zbigniew

• Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland

• https://orcid.org/0000-0003-2825-5526

Bibliografia

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• Kuhn, H., & Medlin, D., (2000). ASM Handbook Volume 8: Mechanical Testing and Evaluation. ASM International.
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