Complex alloy steel for heavily loaded carburized gear wheels
Journal Article
·
· Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States)
The tendency of steel 18KhGN2MFB towards internal oxidation and austenite grain growth during CHT is markedly lower than for steel 20KhNZA normally used for gear wheels. Steel 18KhGN2MFB has sufficiently high hardenability for the carburized and carbonitrided layers. The fatigue limit in bending for carbonitrided specimens of steel 18KhGN2MFB is 15% higher than for carburized steel 20KhNZA, 20% higher than for carbonitrided steel 18KhGT, which may be explained by formation of a finely dispersed structure in the hardening of the suggested steel. Use of steel 18KhGN2MFB instead of 20KhNZA makes it possible to reduce the duration of CHT for gear wheels as a result of using direct quenching after impregnation, and a reduction in the required overall thickness of the diffusion layer. In this way there is a marked reduction in the level of residual strains for gear wheels and their endurance increases by a factor 2-2.5.
- OSTI ID:
- 5358240
- Journal Information:
- Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States), Journal Name: Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States) Vol. 29:5/6; ISSN MHTRA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of residual austenite on the mechanical properties of carburized steels
Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17
Fatigue behavior of two carburized low alloy steels
Journal Article
·
Sun May 01 00:00:00 EDT 1988
· Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States)
·
OSTI ID:5933287
Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17
Journal Article
·
Tue May 15 00:00:00 EDT 2007
· Materials Characterization
·
OSTI ID:21003558
Fatigue behavior of two carburized low alloy steels
Book
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:389724
Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
AUSTENITE
CARBON ADDITIONS
CARBONITRIDES
CARBURIZATION
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION RESISTANCE
CRYSTAL STRUCTURE
GEARS
GRAIN GROWTH
GRAIN SIZE
HARDENING
HARDNESS
HEAT TREATMENTS
IRON ALLOYS
MACHINE PARTS
MANGANESE ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NIOBIUM ALLOYS
NITRIDATION
NITROGEN COMPOUNDS
SERVICE LIFE
SILICON ALLOYS
SIZE
SURFACE HARDENING
SURFACE TREATMENTS
TESTING
VANADIUM ALLOYS
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
AUSTENITE
CARBON ADDITIONS
CARBONITRIDES
CARBURIZATION
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION RESISTANCE
CRYSTAL STRUCTURE
GEARS
GRAIN GROWTH
GRAIN SIZE
HARDENING
HARDNESS
HEAT TREATMENTS
IRON ALLOYS
MACHINE PARTS
MANGANESE ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NIOBIUM ALLOYS
NITRIDATION
NITROGEN COMPOUNDS
SERVICE LIFE
SILICON ALLOYS
SIZE
SURFACE HARDENING
SURFACE TREATMENTS
TESTING
VANADIUM ALLOYS