- Tytuł:
- Difference of Microstructures and Mechanical Properties between 9Cr-1W Ferritic/martensitic Steel and ODS Steel
- Autorzy:
-
Kim, Ga Eon
Kim, Tae Kyu
Noh, Sanghoon - Powiązania:
- https://bibliotekanauki.pl/articles/355149.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
9Cr-1W steel
oxide dispersion strengthening
ODS
grain refinement
nano-oxide particle
creep resistance - Opis:
- Ferrtic/martensitic and ODS steels were fabricated by the mechanical alloying process, and their microstructures and mechanical properties were investigated. The 9Cr-1W and 9Cr-1W-0.3Ti-0.35Y2 O3 (in wt.%) steels were prepared by the same fabrication process such as mechanical alloying, hot isostatic pressing, and hot rolling processes. A microstructural observation of these steels indicated that the Ti and Y2 O3 additions to 9Cr-1W steel were significantly effective to refine the grain size and form nano-sized Y-Ti-O oxide particles. As a result, the tensile strengths at room and elevated temperatures were considerably enhanced. Considerable improvement of the creep resistances at 700°C was also evaluated. It is thus concluded that 9Cr-1W ODS steel with Ti and Y2 O3 additions would be very effective in improving the mechanical properties especially at elevated temperatures.
- Źródło:
-
Archives of Metallurgy and Materials; 2020, 65, 1; 337-341
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł