Impact of hydrogen charging techniques on hydrogen embrittlement behavior of s960mc ahs steel

• Autorzy: Straková Denisa , Novy Frantisek , Šikyňa Lukáš

Identyfikatory

DOI

10.2478/czoto-2024-0029

• Języki publikacji: EN

Abstrakty

EN

The study explores the influence of hydrogen embrittlement on advanced highstrength steel S960MC, focusing on the role of different hydrogen charging techniques. Hydrogen embrittlement poses a critical challenge in high-strength steels, compromising their structural integrity and limiting their applications in demanding environments. The findings indicate that S960MC steel demonstrates intrinsic resistance to hydrogen embrittlement when exposed to a hydrogen-supersaturated environment without external factors like electric current or elevated temperature. However, cathodic hydrogen charging significantly enhances hydrogen diffusion into the material, leading up to a 60% decrease in ultimate tensile strength. In contrast, immersion hydrogen charging showed a minimal effect on the mechanical properties. Fractographic analysis showed that cathodic charging led to severe embrittlement, characterized by mixed transcrystalline quasicleavage, intercrystalline fractures, and extensive secondary cracking. Conversely, immersion charging resulted in negligible embrittlement, with minimal changes in fracture morphology. These results highlight the critical role of hydrogen charging methods in the embrittlement behavior of S960MC steel, emphasizing the substantial impact of cathodic charging on material degradation.

Słowa kluczowe

EN

hydrogen charging; high strength steel; cathodic hydrogen charging; immersion hydrogen charging

PL

ładowanie wodorem; stal o wysokiej wytrzymałości; katodowe ładowanie wodorem; zanurzenie ładowania wodorem

• Wydawca: De Gruyter
• Czasopismo: System Safety : Human - Technical Facility - Environment
• Rocznik: 2024
• Tom: Vol. 6, iss. 1
• Strony: 270--276
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Straková Denisa

• University of Žilina, Slovakia

• https://orcid.org/0000-0002-0553-885X

autor

Novy Frantisek

• University of Žilina, Slovakia

• https://orcid.org/0000-0002-7527-5020

autor

Šikyňa Lukáš

• University of Žilina, Slovakia

• https://orcid.org/0009-0004-7168-6852

Bibliografia

• 1.Djukic, M. B., Bakic, G. M., Zeravcic, V. S., Sedmak, A., Rajicic, B., 2019. The synergistic action and interplay of hydrogen embrittlement mechanisms in steels and iron: Localized plasticity and decohesion, Engineering Fracture Mechanics, 216, 106528, DOI: 10.1016/j.engfracmech.2019.106528.
• 2.Huang, L., Chen, D., Xie, D., Li, S., Zhang, Y., Zhu, T., Raabe, D., Ma, E., Li, J., Shan, Z., 2023. Quantitative tests revealing hydrogen-enhanced dislocation motion in α-iron, Nature Materials, 22(6), 710-716, DOI: 10.1038/s41563-023-01537-w.
• 3.Lynch, S., 2009. Comments on “A unified model of environment-assisted cracking”, Scripta Materialia, 61(3), 331-334, DOI: 10.1016/j.scriptamat.2009.02.031.
• 4.Lynch, S., 1988. Environmentally assisted cracking: Overview of evidence for an adsorptioninduced localised-slip process, Acta Metallurgica, 36(10), 2639-2661, DOI: 10.1016/0001- 6160(88)90113-7.
• 5.Takagi, S., Toji, Y., 2012. Application of NH4SCN Aqueous Solution to Hydrogen Embrittlement Resistance Evaluation of Ultra-high Strength Steels, ISIJ International, 52(2), 329-331, DOI: 10.2355/isijinternational.52.329.
• 6.Troiano, A. R., 2016. The role of hydrogen and other interstitials in the mechanical behavior of metals, Metallography Microstructure and Analysis, 5(6), 557-569, DOI: 10.1007/s13632-016- 0319-4.
• 7.Tunes, M. A., Uggowitzer, P. J., Dumitraschkewitz, P., Willenshofer, P., Samberger, S., Da Silva, F. C., Schön, C. G., Kremmer, T. M., Antrekowitsch, H., Djukic, M. B., Pogatscher, S., 2024. Limitations of hydrogen detection after 150 years of research on hydrogen embrittlement, Advanced Engineering Materials, Volume, Issue, page number, DOI: 10.1002/adem.202400776.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).