Steel article and method

Details Steel article and method Steel article and method

1991-11-22

1993-01-05

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

148228, 148226, 148318, 148900, C23C 826, C23C 836

Patent

active

051767600

ABSTRACT:
A hard wear-resistant and corrosion- and oxidation-resistant stainless steel article is made by precision machining a work piece of approximately the size and shape of the desired article, then subjecting the resulting cold worked article to ion bombardment until the article is nitrided to a depth of about 0.002 inch, and finally subjecting the nitrided article to an atmosphere of argon and nitrogen and oxygen until the resulting ion bombardment has penetrated to a depth in the article surface of about 0.0001 inch.

REFERENCES:
patent: 4212687 (1980-07-01), Tanaka et al.

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