Method of carburizing austenitic metal

Details Method of carburizing austenitic metal Method of carburizing austenitic metal

1994-10-19

1996-09-17

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

148225, C23C 820, C23C 822, C21D 106

Patent

active

055564836

ABSTRACT:
A method for carburizing austenitic metal comprising fluorinating the austenitic metal and consecutive carburizing at a low temperature not more than 680.degree. C. A carburizing temperature can be lowered by such a fluorination. As a result, carbide of chrome component in the austenitic metal can be prevented from depositing. That is, much chrome component remains in the austenitic metal. Therefore, the austenitic metal surface can be hardened and also superior anti-corrosion property can be maintained.

REFERENCES:
patent: 3765929 (1973-10-01), Martin
patent: 4957421 (1990-09-01), Baldi
patent: 5013371 (1991-05-01), Tahara et al.
patent: 5141567 (1992-08-01), Tahara et al.
patent: 5340412 (1994-08-01), Yoshino et al.

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