Experimental Study of Thermal Ageing and Hydrogen Embrittlement Effect on the Equipments of a Rocket Engine

Document Type : Original Article

Authors

Mechanical and Process Engineering Faculty, University of Science and Technology Houari Boumediene (USTHB), B.P. 32, El-Alia, 16111, Bab-Ezzouar, Algiers, Algeria

Abstract

In the present study employed disc pressure tests to assess the effects of hydrogen embrittlement and thermal ageing on the fatigue life of a thin-wall circular part within a rocket engine. The technique compared the pressure resistance of membranes tested under helium and hydrogen, offering a simple, sensitive, and reliable method. Disc tests were selected to mimic natural operating conditions, as they align with those of a thin-wall circular part within a rocket engine. The originality of these tests appears to lie in their enhanced performance in terms of sensitivity and reproducibility. To achieve this, tests were conducted across various conditions, including sample thicknesses of 0.75 mm, a broad range of strain rates from 10-6 s-1 to 100 s-1, temperatures spanning from 20°C to 900°C, and pressure rates from 10-2 to 2.104 MPa/min. Furthermore, a variety of materials were investigated, including copper, nickel alloy, and stainless steel. The results demonstrated that thermal aging leads to precipitation, particularly intergranular precipitation. These precipitates diminish the material's ductility, particularly when they are nearly continuous. Additionally, the material's sensitivity to hydrogen becomes significant when hydrogen, supersaturated due to rapid cooling, becomes trapped on precipitates formed at high temperatures. Furthermore, the results indicated that thermal and hydrogen-induced damage mutually reinforces each other, resulting in reduced fatigue life under high deformation.

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  1. Zhao N, Zhao Q, He Y, Liu R, Zheng W, Liu W, et al. Investigation on hydrogen embrittlement susceptibility in martensitic steels with 1000 MPa yield strength. Journal of Materials Research and Technology. 2021;15:6883-900. https://doi.org/10.1016/j.jmrt.2021.11.130
  2. Moshtaghi M, Loder B, Safyari M, Willidal T, Hojo T, Mori G. Hydrogen trapping and desorption affected by ferrite grain boundary types in shielded metal and flux-cored arc weldments with Ni addition. International Journal of Hydrogen Energy. 2022;47(47):20676-83. https://doi.org/10.1016/j.ijhydene.2022.04.260
  3. Chen W, Zhao W, Gao P, Li F, Kuang S, Zou Y, et al. Interaction between dislocations, precipitates and hydrogen atoms in a 2000 MPa grade hot-stamped steel. Journal of Materials Research and Technology. 2022;18:4353-66. https://doi.org/10.1016/j.jmrt.2022.04.094
  4. Zheng Z, Liang S, Huang M, Zhao L, Zhu Y, Li Z. Studying the effects of hydrogen on dislocation mobility and multiplication in nickel by phase-field method. Mechanics of Materials. 2022;173:104443. https://doi.org/10.1016/j.mechmat.2022.104443
  5. Yu H, Cocks A, Tarleton E. Discrete dislocation plasticity HELPs understand hydrogen effects in bcc materials. Journal of the Mechanics and Physics of Solids. 2019;123:41-60. https://doi.org/10.1016/j.jmps.2018.08.020
  6. Wang S, Xu D, Zhang Z, Ma Y, Qiao Y. Effect of electrochemical hydrogen charging on the mechanical behavior of a dual-phase Ti–4Al–2V–1Mo–1Fe (in wt.%) alloy. Materials Science and Engineering: A. 2021;802:140448. https://doi.org/10.1016/j.msea.2020.140448
  7. Li P, Wang J, Du M, Qiao L. Hydrogen embrittlement sensitivity of dispersion-strengthened-high-strength steel welded joint under alternating wet-dry marine environment. International Journal of Hydrogen Energy. 2023. https://doi.org/10.1016/j.ijhydene.2023.05.276
  8. Wang Q, Liu X, Zhu T, Ye F, Wan M, Zhang P, et al. Mechanism of hydrogen-induced defects and cracking in Ti and Ti–Mo alloy. International Journal of Hydrogen Energy. 2023;48(15):5801-9. https://doi.org/10.1016/j.ijhydene.2022.11.119
  9. Momotani Y, Shibata A, Tsuji N. Hydrogen embrittlement behaviors at different deformation temperatures in as-quenched low-carbon martensitic steel. International Journal of Hydrogen Energy. 2022;47(5):3131-40. https://doi.org/10.1016/j.ijhydene.2021.10.169
  10. Xu J, Yu C, Lu H, Wang Y, Luo C, Xu G, et al. Effects of alloying elements and heat treatment on hydrogen diffusion in SCRAM steels. Journal of Nuclear Materials. 2019;516:135-43. https://doi.org/10.1016/j.jnucmat.2019.01.019
  11. Safyari M, Moshtaghi M, Kuramoto S. Effect of strain rate on environmental hydrogen embrittlement susceptibility of a severely cold-rolled Al–Cu alloy. Vacuum. 2020;172:109057. https://doi.org/10.1016/j.vacuum.2019.109057
  12. Metalnikov P, Eliezer D, Ben-Hamu G. Hydrogen trapping in additive manufactured Ti–6Al–4V alloy. Materials Science and Engineering: A. 2021;811:141050. https://doi.org/10.1016/j.msea.2021.141050
  13. Liu S, Wu W, Fu H, Li J. Effect of the loading mode and temperature on hydrogen embrittlement behavior of 15Cr for steam turbine last stage blade steel. International Journal of Hydrogen Energy. 2023;48(23):8668-84. https://doi.org/10.1016/j.ijhydene.2022.10.061
  14. Lamani E, Jouinot P, editors. Embrittlement phenomena in an austenitic stainless steel: influence of hydrogen and temperature. AIP Conference Proceedings; 2007: American Institute of Physics. 10.1063/1.2733230
  15. Genevois-Stasi J. Etude de l’évolution des propriétés mécaniques et métallurgiques de l’inconel 625 au cours du vieillissement, utilisation de l’essai de disques sous pression de gaz. These, Paris. 1998;6.
  16. Jouinot P, Gantchenko V, Inglebert G, Riccius J, editors. Material damage induced by environment and temperature and identification process. European Congress on Computational Methods in Applied Sciences and Engineering ECCOMAS 2004; 2004.
  17. Hill R. C. A theory of the plastic bulging of a metal diaphragm by lateral pressure. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science. 1950;41(322):1133-42. https://doi.org/10.1080/14786445008561154
  18. Duncan J. The hydrostatic bulge test as a laboratory experiment. Bulletin of Mechanical Engineering Education. 1965;4:29-37.
  19. Aubin V, Quauaegebeur P, Degallaix S, editors. Yield surface behaviour under biaxial fatigue. Proceedings of 8th international fatigue congress, Stockhom, Sweden; 2002.
  20. Mesrar R. Comportement plastique des tôles sous sollicitation biaxiale et analyse numérique de la mise en forme par gonflement hydraulique: Metz; 1991.
  21. Boulila A, Ayadi M, Zghal A, Jendoubi Ke. Validation expérimentale du modèle de calcul en calotte sphérique des plaques circulaires minces sous l'effet d'un gonflement hydraulique. Mécanique & industries. 2002;3(6):627-38.
  22. Jouinot P, Gantchenko V. Lois de comportement mécanique et endommagement de membranes sous pression de gaz. Actes de ITCT, Paris, France. 2006.
  23. Örnek C, Mansoor M, Larsson A, Zhang F, Harlow GS, Kroll R, et al. The causation of hydrogen embrittlement of duplex stainless steel: Phase instability of the austenite phase and ductile-to-brittle transition of the ferrite phase–Synergy between experiments and modelling. Corrosion Science. 2023;217:111140. https://doi.org/10.1016/j.corsci.2023.111140
  24. McAllester D. On the Mathematics of Diffusion Models. arXiv preprint arXiv:230111108. 2023. https://doi.org/10.48550/arXiv.2301.11108
  25. Gale WF, Totemeier TC. Smithells metals reference book: Elsevier; 2003.