Sheet processing for ODS iron-base alloys
AssigneeInco Alloys International, Inc.
InventorsFrancis S. Suarez, James D. Vandevender, Vernon L. Maynard
Life of this patent
Estimating the term…
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.
Claims12
A method for forming sheet of iron-base ODS alloys comprising:
- a) hot rolling a billet or iron-base ODS alloy in a first direction to a predetermined thickness to introduce a predetermined amount of work hardening into said billet;
- and
- b) cold rolling said work hardened metal of said billet in a second direction substantially perpendicular to said first direction after said hot rolling to form said iron-base ODS sheet of a predetermined thickness and to introduce a predetermined amount of cold work into said metal.
A method for forming sheet of iron-base ODS alloys comprising:
- a) hot rolling a billet of iron-base ODS alloy in a first direction to a predetermined thickness to introduce a predetermined amount of work hardening into said billet;
- and
- b) cold rolling said work hardened metal of said billet in a second direction substantially perpendicular to said first direction after said hot rolling to form said iron-base ODS sheet of a predetermined thickness and to introduce a predetermined amount of cold work into said metal balanced to said hot rolling to produce substantially uniform properties in the transverse and longitudinal directions upon recrystallization.
Dependencies are inferred from the claim text.