Effects of chemical composition and heat treatment on elastic moduli of engineering steels

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Nippon Kikai Gakkai Ronbunshu A Hen | / 602卷 / 2290-2296期
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Composition effects - Elastic moduli - Heat treatment - Lattice constants - Regression analysis - Shear strength - Stainless steel - Thermal effects - Tool steel;
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The elastic moduli of 20 kinds of engineering steels were measured by the ultrasonic pulse method. For quench-tempered carbon and low alloy steels, a linear model can be used to explain the moduli with an accuracy of 0.3%. The equation derived is E, G or ν=A1C+A2Si+A3Ni+A4Cr +A5Cu +A6(1/T)+A0, where E, G and ν are Young's modulus, the shear modulus and Poisson's ratio, respectively. C, Si etc. are chemical elements and T is the tempering temperature. The effects of heat-to-heat variation, material specification and tempering temperature on the elastic moduli are expressed fairly well by the equations.
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