Abstract
Combined with the phase transformations in rolling,the phase configuration,the tensile strength,and the yield strength with different terminal rolling grain sizes in Q235strip steel have been theoretically calculated using the covalent electron number(n A )of the strongest bond in phase cells and the interface electron density difference(Δρ)in alloys.The calculated results agree well with the results of real production.Therefore,the calculation method of terminal rolling tensile and yield strength in the non-quenched-tem-pered steel containing pearlite is given by the alloying electron structure parameters.
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