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Effect of Strain Range and Hold Time on High Temperature Fatigue Life of G17CrMoV5-10 Cast Alloy Steel

Anna Polnik

Anna Polnik

  • Warsaw, Poland
  • Faculty of Materials Science and Engineering, Warsaw University of TechnologyWarsaw, Poland
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Polnik, Anna
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Hubert Matysiak

Hubert Matysiak

Warsaw, Poland
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Matysiak, Hubert
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Sławomir Czarnewicz

Sławomir Czarnewicz

Łukasiewicz Research Network, Institute of AviationWarsaw, Poland
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Czarnewicz, Sławomir
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Zbigniew Pakieła

Zbigniew Pakieła

Faculty of Materials Science and Engineering, Warsaw University of TechnologyWarsaw, Poland
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Pakieła, Zbigniew
  
28. Nov. 2023
Effect of Strain Range and Hold Time on High Temperature Fatigue Life of G17CrMoV5-10 Cast Alloy Steel's Cover Image
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Artikel-Kategorie: research article
Online veröffentlicht: 28. Nov. 2023
Seitenbereich: 1 - 7
DOI: https://doi.org/10.2478/fas-2022-0001
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© 2022 Anna Polnik et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Hysteresis loop of the LCF test shown for 100%, 50%, and 0% of life. LCF, low cycle fatigue.
Hysteresis loop of the LCF test shown for 100%, 50%, and 0% of life. LCF, low cycle fatigue.

Figure 2.

Maximum stresses.
Maximum stresses.

Figure 3.

Fatigue life for 0.4% and 0.6% Δε total stain.
Fatigue life for 0.4% and 0.6% Δε total stain.

Figure 4.

Stress relaxation during hold time, th = 120 s.
Stress relaxation during hold time, th = 120 s.

Figure 5.

Strain during tests for 0.4% and 0.6% of total strain.
Strain during tests for 0.4% and 0.6% of total strain.

Figure 6.

Alternating and mean stresses for 0.4% and 0.6% of total strain.
Alternating and mean stresses for 0.4% and 0.6% of total strain.

LCF fatigue test matrix_

Temperature, T (°C) 500 Hold time, th (s) Frequency, (Hz) Total strain, Δε (%)
Strain ratio, R=εmaxεmin\[R=\frac{{{\varepsilon }_{\max }}}{{{\varepsilon }_{\min }}}\] -1
Cycle scheme
0 0.08 0.4
0.6
120 0.008 0.4
0.6

Steel G17CrMoV5-10 chemical composition for cast_

Element C Si Mn P S Ni Cr Mo V Cu Sn
wt.% 0.19 0.4 0.9 0.014 0.011 0.08 1.44 1.04 0.2 0.30 0.001
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