Thermomechanical treatment of heat-resistant alloys
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Thermomechanical treatment is the most feasible method for manufacturing parts of alloy EI437B and its substitutes (EI787, EI696), which must operate at temperatures of 550–650°. The process combines hot stamping with air cooling. After TMT, these parts have a fully or partially recrystallized structure.
The application of TMT to parts operating at 550–650° provides improved strength and heat resistivity and retains high ductility properties, at the same time decreasing the sensitivity to cutting and the tendency to high temperature embrittlement.
KeywordsDuctility Thermomechanical Treatment Feasible Method High Ductility Improve Strength
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