Metal treatment – Compositions – Heat treating
Patent
1987-04-10
1988-12-27
Brody, Christopher W.
Metal treatment
Compositions
Heat treating
148 166, C21D 174
Patent
active
047938714
ABSTRACT:
A method is disclosed for subjecting a steel component made of a non-alloy or fine grained steel to a hardening treatment. An epsilon iron nitride surface layer of high surface area resistance is formed on the steel component by gas nitriding or nitrocarburizing and includes the preliminary step of heating the component to the nitriding temperature in an atmosphere which is inert to the metal of the component.
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Dawes et al, "Nitriding Non-Alloy Steel Components", Heat Treatment Metals, 1980.1, pp. 1 through 4.
Dawes Cyril
Tranter Donald F.
Brody Christopher W.
Lucas Industries Public Limited Company
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