authors
- GARCIA JUNCEDA AMEIGENDA, ANDREA
- GARCIA RODRIGUEZ, NEREA
- CAMPOS GOMEZ, MONICA
- Cartõn Cordero, Marta
- TORRALBA CASTELLO, JOSE MANUEL
Effect of Zirconium on the Microstructure and Mechanical Properties of an Al-Alloyed ODS Steel Consolidated by FAHP
Articles
Overview
published in
publication date
- January 2015
start page
- 3582
end page
- 3587
issue
- 11
volume
- 98
Digital Object Identifier (DOI)
International Standard Serial Number (ISSN)
- 0002-7820
Electronic International Standard Serial Number (EISSN)
- 1551-2916
abstract
- The American Ceramic Society.An oxide dispersion strengthened (ODS) ferritic steel with nominal composition Fe-14Cr-5Al-3W-0.4Ti-0.25Y2O3-0.6ZrO2 was produced by mechanical alloying (MA), based on a prealloyed grade Fe-14Cr-5Al-3W steel with the addition of Ti element, Y2O3 and ZrO2, and subsequent consolidation by means of field assisted hot pressing (FAHP). The microstructure and the mechanical properties were analyzed and compared with a reference material with nominal composition Fe-14Cr-5Al-3W-0.4Ti-0.25Y2O3. The addition of zirconia increased the volume fraction of the smallest and equiaxed ferritic nano-grains and decreased the quantity of larger aluminum nano-oxides within the ferritic matrix, promoting the formation of fine zirconium nano-oxides and leading to the enhancement of the mechanical properties of the alloy.