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2022•The Physics of Metals and MetallographyRequires access

Structural Hardening of High-Speed Steel

I. K. Kupalova

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Abstract

Abstract The hardening (and, correspondingly, fine structure and properties) of high-speed steels as a result of their additional doping with cobalt, thermomechanical treatment, or high-temperature stagewise tempering is compared. It is shown that stagewise short-term high-temperature tempering within a temperature range of 610–630°C, which is not equivalent to standard tempering at 560°C two times for an hour, creates an optimal structural state of steel and is less prolonged, laborious, and energy-consuming.

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What this paper is about

Abstract The hardening (and, correspondingly, fine structure and properties) of high-speed steels as a result of their additional doping with cobalt, thermomechanical treatment, or high-temperature stagewise tempering is compared. It is shown that stagewise short-term high-temperature tempering within a temperature range of 610–630°C, which is not equivalent to standard tempering at 560°C two times for an hour, creates an optimal structural state of steel and is less prolonged, laborious, and energy-consuming.

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Available abstract

Abstract The hardening (and, correspondingly, fine structure and properties) of high-speed steels as a result of their additional doping with cobalt, thermomechanical treatment, or high-temperature stagewise tempering is compared. It is shown that stagewise short-term high-temperature tempering within a temperature range of 610–630°C, which is not equivalent to standard tempering at 560°C two times for an hour, creates an optimal structural state of steel and is less prolonged, laborious, and energy-consuming.

Key concepts: Tempering, Hardening (computing), Materials science, High-speed steel, Atmospheric temperature range, Metallurgy, Doping, Range (aeronautics)

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