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Title: Method of and apparatus for thermomagnetically processing a workpiece

A method of thermomagnetically processing a material includes disposing a workpiece within a bore of a magnet; exposing the workpiece to a magnetic field of at least about 1 Tesla generated by the magnet; and, while exposing the workpiece to the magnetic field, applying heat energy to the workpiece at a plurality of frequencies to achieve spatially-controlled heating of the workpiece. An apparatus for thermomagnetically processing a material comprises: a high field strength magnet having a bore extending therethrough for insertion of a workpiece therein; and an energy source disposed adjacent to an entrance to the bore. The energy source is an emitter of variable frequency heat energy, and the bore comprises a waveguide for propagation of the variable frequency heat energy from the energy source to the workpiece.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1150015
Assignee:
UT-Battelle, LLC (Oak Ridge, TN) ORNL
Patent Number(s):
8,795,444
Application Number:
14/186,385
Contract Number:
AC05-000R22725
Resource Relation:
Patent File Date: 2014 Feb 21
Research Org:
ORNL (Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States))
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Works referenced in this record:

Using magnetic field gradients to control the directional solidification of alloys and the growth of single crystals
journal, September 2004

In situ evidence of enhanced transformation kinetics in a medium carbon steel due to a high magnetic field
journal, July 2004