Hypereutectoid high-speed steels
Half of the tungsten and molybdenum contained in R6M5 and R18 steels is concentrated in the undissolved eutectic carbides hindering austenitic grain gowth in hardening and providing the necessary strength and impact strength. This article describes the tungsten-free low-alloy high-speed steel 11M5F with a chemical composition of 1.03-1.10% C, 5.2-5.7% Mo, 3.8-4.2% Cr, 1.3-1.7% V, 0.3-0.6% Si, and 0.3% Ce. The properties of 11M5F and R6M5 steels are examined and compared. The results of production and laboratory tests of the cutting properties of tools of the steels developed showed their high effectiveness, especially of 11M5F steel with 1% A1. The life of tools of the tungsten-free steels is two or three times greater than the life of tools of R6M5 steel.
- Research Organization:
- Moscow Machine and Tool Institute
- OSTI ID:
- 5535539
- Journal Information:
- Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States), Vol. 27:7-8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHROMIUM ALLOYS
CHEMICAL COMPOSITION
HARDNESS
IMPACT STRENGTH
CUTTING TOOLS
MATERIALS
MOLYBDENUM ALLOYS
STEELS
CERIUM ADDITIONS
CRYSTAL-PHASE TRANSFORMATIONS
GRAIN GROWTH
MECHANICAL TESTS
METALLURGICAL EFFECTS
MOLYBDENUM CARBIDES
PRECIPITATION
SERVICE LIFE
SILICON ADDITIONS
TEMPERATURE EFFECTS
VANADIUM ALLOYS
ALLOYS
CARBIDES
CARBON COMPOUNDS
CERIUM ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MOLYBDENUM COMPOUNDS
PHASE TRANSFORMATIONS
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SILICON ALLOYS
TESTING
TOOLS
TRANSITION ELEMENT COMPOUNDS
360102* - Metals & Alloys- Structure & Phase Studies
360103 - Metals & Alloys- Mechanical Properties