Metal treatment – Process of modifying or maintaining internal physical... – Carburizing or nitriding using externally supplied carbon or...
Patent
1993-02-12
1994-12-27
Beck, Shrive
Metal treatment
Process of modifying or maintaining internal physical...
Carburizing or nitriding using externally supplied carbon or...
4272481, 156664, C23C 824, C23F 128
Patent
active
053761880
ABSTRACT:
A hard nitrided layer is formed on austenitic stainless steel by holding the austenitic stainless steel in a heated condition under a fluorine- or fluoride-containing atmosphere and then nitriding it so that a close uniform nitriding layer can be formed, resulting the remarkable improvement in the surface hardness of the above-mentioned austenitic stainless steel. The temperature in the above-mentioned nitriding treatment is set below 450.degree. C. so that high anti-corrosion property, originally inherent in austenitic stainless steel, can be retained without deterioration.
REFERENCES:
patent: 4486462 (1984-12-01), Asahi et al.
patent: 4942059 (1990-07-01), Wilson
patent: 4975147 (1990-12-01), Tahara et al.
patent: 5013371 (1991-05-01), Tahara et al.
patent: 5112030 (1992-05-01), Tahara et al.
patent: 5114500 (1992-05-01), Tahara et al.
patent: 5141567 (1992-08-01), Tahara et al.
patent: 5176889 (1993-01-01), Yoshino et al.
patent: 5205466 (1993-04-01), Ker
patent: 5208073 (1993-05-01), Yoshino
patent: 5254181 (1993-10-01), Yoshino et al.
Brick, Robert M., et al. Structure and Properties of Engineering Materials McGraw Hill Books, 1977 p. 342.
Hayashida Tadashi
Kitano Kenzo
Minato Teruo
Senbokuya Haruo
Tahara Masaaki
Beck Shrive
Chen Bret
Daidousanso Co. Ltd.
LandOfFree
Method of nitriding austenitic stainless steel products does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of nitriding austenitic stainless steel products, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of nitriding austenitic stainless steel products will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-916025