High Temperature and Corrosion Properties of A Newly Developed Fe-Al-O Based OPH Alloy

0525064 - ÚFM 2021 RIV CH eng J - Journal Article
Khalaj, O. - Saebnoori, E. - Jirková, H. - Chocholaty, O. - Svoboda, Jiří
High Temperature and Corrosion Properties of A Newly Developed Fe-Al-O Based OPH Alloy.
Metals. Roč. 10, č. 2 (2020), č. článku 167. E-ISSN 2075-4701
R&D Projects: GA ČR(CZ) GA17-01641S
Institutional support: RVO:68081723
Keywords : mechanical-properties * structural-materials * new-generation * grain-growth * carbon-steel * behavior * single * creep * challenges * oph * corrosion * oxidation * microstructure * Fe-Al-O
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impact factor: 2.351, year: 2020
Method of publishing: Open access
https://www.mdpi.com/2075-4701/10/2/167

Fe-Al-O-based materials are currently undergoing a great deal of development because of their many special properties. However, lack of strength at high temperatures, limited ductility at ambient temperatures and corrosion resistance have hindered a wider application of these materials. Recently, a new Fe-Al-based oxide precipitation hardened (OPH) steel was developed by the authors to improve the mechanical properties and oxidation resistance. The new OPH alloys are produced by dissolving a specific amount of oxygen in the matrix during mechanical alloying followed by precipitation of fine dispersion of aluminum or yttrium oxides during hot consolidation. A series of tests was performed to evaluate the thermomechanical properties and corrosion resistance in a 3.5% NaCl solution. The results show improved corrosion resistance, as well as mechanical properties, while the production costs of this material are lower than for traditional materials.
Permanent Link: http://hdl.handle.net/11104/0309287