Mechanical behavior of the new generation of Fe-Al-O oxide dispersion strengthened alloy

0466528 - ÚFM 2017 RIV CZ eng O - Others
Šiška, Filip - Stratil, Luděk - Šmíd, Miroslav - Luptáková, Natália - Záležák, Tomáš - Bártková, Denisa - Svoboda, Jiří
Mechanical behavior of the new generation of Fe-Al-O oxide dispersion strengthened alloy.
2016
R&D Projects: GA ČR GJ15-21292Y
Institutional support: RVO:68081723
Keywords : mechanical alloying * ODS * alumina * tensile properties
Subject RIV: JG - Metallurgy

The new concept of oxide dispersion strengthened alloys is being developed at IPM. These alloys are based on the system Fe-10wt%Al-5wt%Al2O3 which replaces existing system Fe-Cr-Y-O. The alloy is prepared by powder metallurgy process followed by annealing at 1100°C for 24 hours. The current study is focused on testing of the mechanical properties at room temperature and 800°C. The room temperature properties of the new alloy are superior to the commercial ODS alloys (MA956, M957, PM200), however the high temperature performance is about 30% lower. Nevertheless, there are many possibilities to improve the properties of the Fe-Al-Al2O3 alloy via composition and thermal treatment optimization
Permanent Link: http://hdl.handle.net/11104/0265489