Plastic Deformation Mechanism of Dual-phase Steel at Different Strain Rates

Pang, Qing-hai; Zhao, Zhenduo; Xu, Mingming; Xu, Zhiwu; Zhao, Tong

doi:10.1007/s11595-020-2366-6

Cited by 4 publications

(1 citation statement)

References 22 publications

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“…[1][2][3][4][5] Previous studies have shown that adding Ti, V, and Nb elements separately or jointly can refine the structure and enhance precipitation strengthening. [6,7] Based on the Ashby-Orowan equation, [8] the size of the precipitation significantly affects the precipitation strengthening. The nanosized carbides or nitrides are expected to be the main contributor, and Gladman [9] pointed out that the maximum strengthening occurs on the particles of about 5 nm.…”

Section: Introductionmentioning

confidence: 99%

Effect of Microalloyed Elements M (M = Ce, Ti, V, and Nb) on Mechanical Properties and Electronic Structures of γ‐Fe: Insights from a First‐Principles Study

Liu

Yang

Cai

et al. 2021

steel research int.

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Herein, the first-principles calculation is used to study the solid solution behavior of microalloyed elements M (M ¼ Ce, Ti, V, and Nb) in steel, and the effects of M on the mechanical properties and electronic structures of the doped systems are analyzed. The calculated results of the solvation energy and formation enthalpy show that Ce, Ti, V, and Nb can be solubilized in γ-Fe. The elastic modulus calculated results show that M doped reduces the incompressibility and rigidity and of the doped system, but the toughness and machinability are improved. A combination of Bader charge and differential charge density analysis shows that the metallic bond strength of the Fe-M system is weaker than that of the pure Fe system, which is the main reason for the decrease in incompressibility and rigidity of the doped system; the higher electron cloud density of the doped system is the main reason for its toughness increase.

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