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Title: Dual phase magnetic material component and method of forming

A magnetic component having intermixed first and second regions, and a method of preparing that magnetic component are disclosed. The first region includes a magnetic phase and the second region includes a non-magnetic phase. The method includes mechanically masking pre-selected sections of a surface portion of the component by using a nitrogen stop-off material and heat-treating the component in a nitrogen-rich atmosphere at a temperature greater than about 900.degree. C. Both the first and second regions are substantially free of carbon, or contain only limited amounts of carbon; and the second region includes greater than about 0.1 weight % of nitrogen.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1353059
Assignee:
General Electric Company DOEEE
Patent Number(s):
9,634,549
Application Number:
14/068,937
Contract Number:
EE0005573
Resource Relation:
Patent File Date: 2013 Oct 31
Research Org:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

High strength, austenitic, non-magnetic alloy
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Rare earth permanent magnet and method for producing the same
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Composite magnetic member excellent in corrosion resistance and method of producing the same
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journal, December 2011
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