Dual phase magnetic material component and method of forming

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:: Dial, Laura Cerully; DiDomizio, Richard; Johnson, Francis

Issue Date:: 2017-04-25

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

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