New Generation of ODS Alloys

Petr Dymáček; Denisa Bártková; Vít Horník; Luděk Stratil; Bohuslav Mašek; Jiří Svoboda

doi:10.4028/www.scientific.net/KEM.810.113

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 810New Generation of ODS Alloys

New Generation of ODS Alloys

Abstract:

Excellent creep strength of the ODS steels is associated with an attractive interaction between dislocations and oxides. The aim of this study is to explore the Fe-Al-O and Fe-Al-Cr-Y-O systems with high oxygen content (up to 1.5 wt %) represented by alumina or yttria oxides (up to 5 vol. %) to identify the potentials of the new generation of ODS alloys. The basic material is prepared from Fe and 10 or 11 wt. % of Al. Theoretical models showed stability of Al oxides even above 1000°C, while practical results show coarsening with time at these temperatures. Stability of Y oxides is about 200°C higher, so there is a potential to have stable creep resistant alloy in range of 1000-1200°C.

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Periodical:

Key Engineering Materials (Volume 810)

Pages:

113-118

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.810.113

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Online since:

July 2019

Authors:

Petr Dymáček*, Denisa Bártková, Vít Horník, Luděk Stratil, Bohuslav Mašek, Jiří Svoboda

Keywords:

Al₂O₃, Coarse Grain, Fe-Al-O, Microstructure, ODS Alloys, Y₂O₃

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References

[1] D. Bártková, M. Šmíd, B. Mašek, J. Svoboda, F. Šiška, Kinetic study of static recrystallization in an Fe–Al–O ultra-fine-grained nanocomposite, Phil. Mag. Lett. 97 (2017) 379-385.

DOI: 10.1080/09500839.2017.1378445

Google Scholar

[2] O. Khalaj, B. Mašek, H. Jirková, D. Bublíková, J. Svoboda, Influence of thermomechanical treatment on the grain-growth behaviour of new Fe-Al based alloys with fine Al2O3 precipitates, Mater. Tehnol. 51 (2017) 759–768.

DOI: 10.17222/mit.2016.232

Google Scholar

[3] B. Mašek, O. Khalaj, Z. Nový, T. Kubina, H. Jirková, J. Svoboda, C. Štádler, Behaviour of new ODS alloys under single and multiple deformation, Mater. Tehnol. 50 (2016) 891–898.

DOI: 10.17222/mit.2015.156

Google Scholar

[4] O. Khalaj, H. Jirková, B. Mašek, P. Hassasroudsari, T. Studecký, J. Svoboda, Using thermomechanical treatments to improve the grain growth of new-generation ODS alloys, Mater. Tehnol. 52 (2018) 475-482.

DOI: 10.17222/mit.2017.148

Google Scholar

[5] O. Khalaj, H. Jirková, J. Svoboda, B. Mašek, Microstructure evaluation of new ODS alloys with Fe-Al matrix and Al2O3 particles, International Conference on Industrial Design Engineering, ICIDE 2017, Dubai, United Arab Emirates, 28-31 December 2017, ACM International Conference Proceeding Series, 2017, pp.11-15.

DOI: 10.1145/3178264.3178273

Google Scholar

[6] J. Svoboda, V. Horník, L. Stratil, H. Hadraba, B. Mašek, O. Khalaj, H. Jirková, Microstructure Evolution in ODS Alloys with a High-Volume Fraction of Nano Oxides, Metals-Basel 8 (2018) 1079.

DOI: 10.3390/met8121079

Google Scholar