Salam dear Samira,
In order to produce ODS steels, pre-alloyed (PA) steel powders and oxide powders are blended at a right ratio (say 3:1 in weight percent) and then mechanically alloyed (MA). Afterward the MA powders annealed at high temperatures, e.g. at 1000-1200ºC to obtain strengthening oxide phases. This followed by the simultaneous application of high temperature and pressure, using the hot isostatic pressing (HIPing) process or hot extrusion and so on (depending on the properties may expect to obtain).
The performance characteristic of these steels are elevated temperature strength (for example, UTS of 1000MPa at 600ºC) or excellent creep resistance. These steels also exhibit good corrosion resistance. All these are obtained through microstructures that contain a high density of small Y2O3 and/or TiO2 particles dispersed in a ferrite matrix.
Originally, ODS steels are being developed and investigated for nuclear fission and fusion applications in Japan, Europe, and the United States.Somecommercial ODS products are available and are being used in limited quantities; commercial alloys include MA 956 and PM 2000 from Special Metals Corporation in the United States and Metallwerk Plansee GmbH in Germany, respectively.
You can find useful and more detailed information on ODS steel in Journal of Nuclear Materials, for example see DOI: 110.1088/1742-6596/419/1/012029
thank you Mr Sadjad_Baradari for your answer it is very intersting for me and the journal that give help me very much
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