2010•Rejiagong gongyiRequires access

Effect of Sub-temperature Quenching on Hardness of 40Cr Steel

FU Shi-jun

Abstract

The influences of sub-temperature quenching on hardness of 40Cr steel were studied using orthogonal regressive principle,and the regression equation of the hardness was established.The results show that the higher the temperature of sub-temperature quenching,and the lower the temperature of tempering,the higher the hardness within the range of experiment's temperature.The grain size of 40Cr steel quenched by sub-temperature quenching is smaller than that by normal quenching.

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Available abstract

Key concepts: Quenching (fluorescence), Tempering, Materials science, Atmospheric temperature range, Metallurgy, Composite material, Thermodynamics, Fluorescence