Steels for parts of the propulsion system of industrial caterpillar tractors
Journal Article
·
· Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States)
OSTI ID:6100651
New steels were developed for the track shoes and track links of tractors used for the mining of ore, coal, and gold and for the construction of gas and oil lines in the Soviet Union. Steels 40KhFR (for the shoes) and 40GMFR (for the links), alloyed with chromium (up to 1.0%) or manganese (up to 1.2%) with additional microalloying with boron, titanium, and aluminum and with small additions of vanadium (up to 0.10%) and molybdenum (up to 0.16%), were used as base steels. The influence of microalloying was revealed in increases in the depth of hardenability and in impact strength. The steels are fine grained with increased cold resistance both in the high strength and hardened and tempered conditions. Optimum final heat-treat cycles were determined. An analysis of service data showed that the life of parts of the new steels is more than twice as long as of parts of the previously used steels.
- OSTI ID:
- 6100651
- Journal Information:
- Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States), Journal Name: Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States) Vol. 29:12; ISSN MHTRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
012020 -- Coal
Lignite
& Peat-- Surface Mining-- (1987-)
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
EARTHMOVING EQUIPMENT
EQUIPMENT
GRAIN SIZE
HARDENING
HEAT TREATMENTS
IMPACT STRENGTH
IRON ALLOYS
IRON BASE ALLOYS
MANGANESE ALLOYS
MATERIALS HANDLING EQUIPMENT
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
METALLURGICAL EFFECTS
MICROSTRUCTURE
MINING
MOLYBDENUM ADDITIONS
MOLYBDENUM ALLOYS
OPTIMIZATION
PRODUCTION
SERVICE LIFE
SIZE
STEELS
SURFACE MINING
TEMPERATURE EFFECTS
TEMPERING
TESTING
THERMAL CYCLING
TITANIUM ADDITIONS
TITANIUM ALLOYS
VANADIUM ADDITIONS
VANADIUM ALLOYS
012020 -- Coal
Lignite
& Peat-- Surface Mining-- (1987-)
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
EARTHMOVING EQUIPMENT
EQUIPMENT
GRAIN SIZE
HARDENING
HEAT TREATMENTS
IMPACT STRENGTH
IRON ALLOYS
IRON BASE ALLOYS
MANGANESE ALLOYS
MATERIALS HANDLING EQUIPMENT
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
METALLURGICAL EFFECTS
MICROSTRUCTURE
MINING
MOLYBDENUM ADDITIONS
MOLYBDENUM ALLOYS
OPTIMIZATION
PRODUCTION
SERVICE LIFE
SIZE
STEELS
SURFACE MINING
TEMPERATURE EFFECTS
TEMPERING
TESTING
THERMAL CYCLING
TITANIUM ADDITIONS
TITANIUM ALLOYS
VANADIUM ADDITIONS
VANADIUM ALLOYS