Publication Type
Journal
Journal Name
Scripta Materialia
Publication Date
Page Numbers
1040 to 1043
Volume
57
Issue
11
Abstract
The development of porosity at 1000�C in an oxide dispersion strengthened ferritic alloy containing ultra-fine oxide particles with diameters on the order of a few nm is investigated. A comparison with an alloy fabricated by internal oxidation demonstrates that the porosity formation is associated with mechanical alloying with Y2O3 in argon. The pores grow in spite of a sub-micron grain size suggesting that the grain boundaries are not effective paths for removing entrapped gas from the pores.
