Corrosion protection by FeMn by ion implantation

Details Corrosion protection by FeMn by ion implantation Corrosion protection by FeMn by ion implantation

1991-04-26

1993-03-09

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of metal

2041574, 20415744, 20415746, 20415747, 2041575, 360110, 360113, 427130, 428469, 428611, 428632, 428681, 428677, 428694, 428920, 428928, 148101, 148222, 148239, B32B 1504, G11B 5127, G11B 566, B05D 512

Patent

active

051926180

ABSTRACT:
The present invention relates to the improvement of corrosion wear resistance of iron-manganese (FeMn) film by ion implantation and subsequent annealing without substantially affecting the magnetic properties of the magnetic material. A highly corrosive and wear resistant FeMn film is disclosed comprised of a layer of FeMn and at least one protective layer selected from the group consisting of nitrides, carbides and oxides, with said protective layer being formed at the surface of the FeMn layer.

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J. Appl. Phys., 55 (9): 3308-3314 (May 1, 1984) P. B. Madakson "Effect of Implantation Dose on the Hardness, Friction, and Wear of SB-implanted Al."
Mater. Sci. and Eng., 90: 205-212 (1987) P. Madakson "Effects of Tin Ion and Nitrogen Ion Implantation on the Oxidaton of Titanium."
Vacuum, vol. 39, Nos. 2-4: 263-266 (1989) L. Yi et al. "The Mechanical and Corrosion Behavior of iron Implanted with N.sup.+."
Mater. Sci. and Eng., 90: 229-236 (1987) K. Terashima et al. "Surface Modification of Electrodeposited Chromium Films By Ion Implantation."
IEEE-Transactions on Magnetics, Mag-14, No. 5: 521-523 (Sep. 1978) R. D. Hempstead et al. "Unidirectional Anisotropy in Nickel-Ion Films By Exchange Coupling With Antiferromagnetic Films."

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