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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.
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1--7
Opis fizyczny
Bibliogr. 12 poz., rys., tab., wykr.
Twórcy
autor
- 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
autor
- Baker Hughes, al. Krakowska 110/114, 02-256 Warsaw, Poland
autor
- Łukasiewicz Research Network, Institute of Aviation, al. Krakowska 110/114, 02-256 Warsaw, Poland
autor
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland
Bibliografia
- Alsmadi, Z. Y., Alomari, A., Kumar, N., & Murty, K. L. (2020). Effect of hold time on high temperature creep-fatigue behavior of Fe-25Ni-20Cr (wt.%) austenitic stainless steel (Alloy 709). Materials Science and Engineering A, 771(709), 138591. doi:10.1016/j.msea.2019.138591.
- Carroll, M.& Carroll, L. (2011). Influence of hold time on creep-fatigue behavior of an advanced austenitic alloy, no. INL/EXT-11-23202.
- El May, M., Saintier, N., Devos, O., & Rozinoer, A. (2015). Effect of corrosion on the low-cycle fatigue strength of steels used in frequent start-up power generation steam turbine. Procedia Engineering, 133, 528-534. doi:10.1016/j.proeng.2015.12.626.
- Golaski, G. (2009). Microstructure and mechanical properties of G17CrMoV5-10 cast steel after regenerative heat treatment. Operations, Applications and Components, 7, 427-434. doi:10.1115/pvp2009-77710.
- Holdsworth, S. R. (2001). Creep-fatigue properties of high temperature. Creep-fatigue properties of high temperature turbine steels. Materials at High Temperatures, 18(4), 261-265.
- Kocańda, S. (1985). Zmęczeniowe pękanie metali. Warszawa: Wydawnictwo Naukowo-Techniczne.
- Kuhn, H., & Medlin, D., (2000). ASM Handbook Volume 8: Mechanical Testing and Evaluation. ASM International.
- Millien, K. (2020). Prototype steam turbine for solar power production. Advances in Materials Science and Engineering, 2020(Iv). doi:10.1155/2020/4589281.
- Standard Test Method for Strain-Controlled Fatigue Testing. (2008), pp. 545-545-3. doi:10.1520/mnl10913m.
- Steel castings for pressure purposes, SIST EN 10213:2008+A1:2016.
- Swindeman, R. W., & Ren, W. (2018). Fatigue and fracture resistance of heat-resistant (Cr-Mo) ferritic steels. Fatigue and Fracture, 19, 704-711. doi:10.31399/asm.hb.v19.a0002402.
- Takahashi, Y. (2008). Study on creep-fatigue evaluation procedures for high-chromium steels-Part I: Test results and life prediction based on measured stress relaxation. International Journal of Pressure Vessels and Piping, 85(6), 406-422. doi:10.1016/j.ijpvp.2007.11.008.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f56dfefb-2f25-4b87-857f-269275b69e81