skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dual phase magnetic material component and method of forming

Abstract

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:
Research Org.:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1353059
Patent Number(s):
9634549
Application Number:
14/068,937
Assignee:
General Electric Company
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
DOE Contract Number:  
EE0005573
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 31
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Dial, Laura Cerully, DiDomizio, Richard, and Johnson, Francis. Dual phase magnetic material component and method of forming. United States: N. p., 2017. Web.
Dial, Laura Cerully, DiDomizio, Richard, & Johnson, Francis. Dual phase magnetic material component and method of forming. United States.
Dial, Laura Cerully, DiDomizio, Richard, and Johnson, Francis. Tue . "Dual phase magnetic material component and method of forming". United States. https://www.osti.gov/servlets/purl/1353059.
@article{osti_1353059,
title = {Dual phase magnetic material component and method of forming},
author = {Dial, Laura Cerully and DiDomizio, Richard and Johnson, Francis},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {4}
}

Patent:

Save / Share:

Works referenced in this record:

Overview: high-nitrogen alloying of stainless steels
journal, March 1996


Magnetic screw rod using dual state 0.6C–13Cr–Fe bulk magnetic material
journal, May 2002


Study of internal permanent magnet rotor made of 0.6C–13Cr–Fe dual state magnetic material
journal, May 2003


A study of retainer ring made of 13.5Cr–0.6C–Fe dual state magnetic material
journal, January 2003


Fundamental and Innovations in Plasma Assisted Diffusion of Nitrogen and Carbon in Austenitic Stainless Steels and Related Alloys
journal, July 2009


Phase-Field Modeling of Austenite Formation from a Ferrite plus Pearlite Microstructure during Annealing of Cold-Rolled Dual-Phase Steel
journal, February 2011


Analysis of Magnetism in High Nitrogen Austenitic Stainless Steel and Its Elimination by High Temperature Gas Nitriding
journal, December 2011