Grain refinement of alloys using magnetic field processing

Details Grain refinement of alloys using magnetic field processing Grain refinement of alloys using magnetic field processing

2006-06-20

2006-06-20

Sheehan, John P (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C148S103000, C148S565000, C148S674000, C148S675000

Reexamination Certificate

active

07063752

ABSTRACT:
A method for refining the grain size of alloys which undergo ferromagnetic to paramagnetic phase transformation and an alloy produced therefrom. By subjecting the alloy to a timed application of a strong magnetic field, the temperature of phase boundaries can be shifted enabling phase transformations at lower temperatures.

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Machine Translation of Japanese Patent Document No. 11-269611, cited above in Foreign Patent Documents section.
H.D. Joo, S.U. Kim, N.S. Shin, Y.M. Koo: “An effect of high magnetic field on phase transforma-tion in Fe-C system” Materials Letters, vol. 43, May 2000, pp. 225-229, XP002232281; p. 228, right-hand column, line 8-16; figure 4; table 1 p. 229, left-hand column, line 2-10.
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