CPC C21D 3/08 (2013.01) [C23C 8/04 (2013.01); H02K 15/02 (2013.01); H02K 15/12 (2013.01); C21D 2211/001 (2013.01)] | 20 Claims |
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.
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