Patent ID: 11926880
Assignee: GENERAL ELECTRIC COMPANY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 0:
1. A method of forming a dual-phase magnetic component from an initial component comprising a non-magnetic austenite composition and having a surface, the method comprising:
forming a coating on a portion of the surface of the initial component to form a masked area while leaving an unmasked area thereon;
thereafter, heating the initial component to a treatment temperature such that nitrogen diffuses out of the unmasked area of the initial component to transform the non-magnetic austenite composition to a magnetic phase in the unmasked area; and
thereafter, cooling the initial component from the treatment temperature to form a dual-phase magnetic component having a magnetic region corresponding to the unmasked area and a non-magnetic region corresponding to the masked area.