Calculation of the end-rolling strength in Q235 strip steel by the alloying electron structure parameters

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 Q235 strip 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 (Δ_ρ) 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-tempered steel containing pearlite is given by the alloying electron structure parameters.

Supported by the National Natural Science Foundation of China (Grant No. 50471022) and the Provincial Science and Technology Foundation of Liaoning (Grant No. 2002221005)

Keywords:

• alloying electron structure parameter
• hot-continuous rolling
• structure properties
• calculation

Notes

Supported by the National Natural Science Foundation of China (Grant No. 50471022) and the Provincial Science and Technology Foundation of Liaoning (Grant No. 2002221005)