Processing of two iron-chromium oxide dispersion strengthened steels by mechanical alloying

Abstract

The objective of this effort is to determine if oxide dispersion strengthened (ODS) alloys produced by mechanical alloying are suitable for first wall applications. SUMMARY Two low activation ferritic ODSalloys have been manufactured, using mechanical alloying procedures, into extruded bar. The alloy compositions in weight percent are: Fe-14Cr-I.0Ti-O.5W-O.25Y203 and Fe-9Cr-2.0W-O.3V-O.O8C-O.25Y203. Dispersoid phase instability is indicated in the 9Cr carbon-containing alloy, but the 14Cr alloy appears to offer a novel material which may be suitable for first wall applications and warrants further study.