Improvement on the Fatigue Strength of Case Hardened Gears by a New Heat Treatment Process Technical Research Center, Komatsu Limited

Format:

Conference/Event

Author/Creator:

Nakamura, Kouzo, author.

Conference Name:

1982 SAE International Off-Highway and Powerplant Congress and Exposition (1982-09-13 : Milwaukee, Wisconsin, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1982

Summary:

It has been well-known that retained austenite in the surface of carburized or carbonitrided steel improves the pitting resistance of the steel under rolling contact, although some deteriorative effect on the bending fatigue has also been reported.The aim of this study is to make clear the influence of retained austenite content on the pitting and on the bending fatigue, and also to develop a heat treating process which enables quantitative control of retained austenite on the surface of gears.The gears treated by the newly developed carbonitriding process to contain 6070% retained austenite in the surface achieved a pitting life almost three times longer than those subjected to conventional carburizing without any bending fatigue failure

Notes:

Vendor supplied data

Publisher Number:

821102

Access Restriction:

Restricted for use by site license