Sheet processing for ODS iron-base alloys

Details Sheet processing for ODS iron-base alloys Sheet processing for ODS iron-base alloys

1990-04-24

1991-07-16

Roy, Upendra

Metal treatment

Compositions

Heat treating

148 12R, 148155, 148308, 428614, C22C 100, C21D 800

Patent

active

050321900

ABSTRACT:
The process of the invention provides an improved method for forming sheet of iron-base ODS alloys. Powder containing iron and a substantially uniformly distributed oxide dispersoid is hot compacted into a billet. The billet is hot rolled in a first direction to introduce a predetermined amount of cold work into said billet. The hot rolled billet is then cold rolled in a second direction substantially perpendicular to said first direction after the hot rolling to form the iron-base ODS sheet. The cold rolling also introduces a predetermined amount of cold work into the billet. Preferably, the hot rolling and cold rolling are balanced to produce substantially uniform properties in the transverse and longitudinal directions.

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patent: 4871400 (1989-10-01), Shindo et al.
patent: 4885042 (1989-12-01), Kenmochi et al.

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