Effects of electroplastic rolling on mechanical properties and microstructure of low-carbon martensitic steel

Qian, Lihe; Zhan, Le; Zhou, Bo; Zhang, X.; Liu, S.; Lv, Z.Q.

doi:10.1016/j.msea.2021.141144

Cited by 25 publications

(4 citation statements)

References 33 publications

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“…The temperature of the sample is controlled by a pyrometer (8). The current through the sample is recorded by a current transformer (9) enclosed in a shield, the response of which is fed to channel 1 of an AKIP-4115/3A digital oscilloscope (10). The voltage drop across the sample is fed through a divider to channel 2 of the same oscilloscope.…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, research on EPE has become increasingly popular [3][4][5][6] since this effect has found applications in various industries. Due to the skin effect [7], a non-thermal reduction in flow stress can be observed in relatively thin workpieces in such manufacturing processes as drawing [8,9], rolling [10,11], stamping [12], forging [13,14], cutting [15], and forming [5,6,[16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Repetitive High-Density Current Pulses on Plastic Deformation of Copper Wires under Stepwise Loading

Dmitriev,

Morkina,

Tarov

et al. 2024

Spec. Mech. Eng. Oper. Res.

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High-density electric current pulses increase the plasticity and reduce the yield stress of metals with negligible heat generation. This effect has great potential for the development of energy-saving technologies for processing hard-to-deform metallic materials. Despite the long history of the study of electroplasticity, there is still no consensus on the physical nature of this effect. In this paper, the effect of repetitive pulses applied at the same or gradually increasing tensile stress on the plastic deformation of copper wire is investigated using a home-made experimental setup. The electroplasticity of the wire in the delivery state and after annealing is compared. It is shown that for a constant tensile stress, the incremental plastic deformation of the wire decreases with each successive pulse. This effect is stronger for annealed wires because they have a lower dislocation density and therefore a lower plasticity resource. The Joule heat release in the specimen and the heating due to plastic deformation are evaluated. The results obtained will be used to fit the parameters of the atomistic model being developed to describe the interaction of electron flow with dislocations.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Repetitive High-Density Current Pulses on Plastic Deformation of Copper Wires under Stepwise Loading

Dmitriev,

Morkina,

Tarov

et al. 2024

Spec. Mech. Eng. Oper. Res.

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show abstract

“…These steels not only require a favorable combination of high strength and satisfactory ductility but also a low springback. Studies have been conducted on low-carbon steels in different structural states, under various current modes and deformation patterns [11][12][13][14][15][16]. For example, the EPE in steels with a chemical composition similar to that of AISI 304L was studied during drawing with a pulsed current [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Electroplastic Effect during Tension and Bending in Duplex Stainless Steel

et al. 2023

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The deformation behavior of duplex stainless steel under tension and bending, accompanied by a pulsed current and when heated by an external source, is investigated. The stress–strain curves are compared at the same temperatures. The contribution to the decrease in flow stresses is greater when using a multi-pulse current at the same temperature, compared to external heating. This confirms the presence of an electroplastic effect. An increase in the strain rate by an order of magnitude reduces the contribution of the electroplastic effect from single pulses to the reduction in flow stresses by 20%. An increase in the strain rate by an order of magnitude reduces the contribution of the electroplastic effect from single pulses to the reduction in flow stresses by 20%. However, in the case of a multi-pulse current, the strain rate effect is not observed. Introducing a multi-pulse current during bending reduces the bending strength by a factor of two and the springback angle to 6.5.

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“…In addition, the uniform plastic deformation on the steel surface also effectively improves the roughness of the steel surface. Qian et al [ 16 ] studied the effect of electroplastic rolling on mechanical properties and microstructure of low carbon martensitic steel. They found that the strength and hardness of steel increased significantly with the increase of deformation during the rolling process.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rolling on Microstructure Evolution and Plastic Deformation Behavior of A473M Martensitic Stainless Steel

Wang

Zhang

Wang

et al. 2022

steel research int.

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Herein, the surface of A473M martensitic stainless steel is strengthened by rolling processing technology. The microstructure evolution and plastic deformation behavior are characterized by electron backscatter diffraction (EBSD). The experimental results indicate that residual compressive stress will be formed on the surface of A473M steel after rolling, and the maximum value can reach 946 MPa. The surface roughness decreases significantly from 383 to 62.7 nm, which is only 1/5 of the matrix. The microstructure of the rolled samples is obviously refined, and <101>//ND texture is formed. The nanohardness of the hardened layer on the sample surface increases from 2.5 to 4.8 GPa, and the elastic modulus increases from 140 to 217 GPa. Compared with the matrix, the tensile strength and yield strength after rolling are increased by 40% and 22%, respectively. EBSD analysis indicates that the texture of the rolled samples after tensile changed from the <101>//TD direction of the matrix to the <101>//TD and <111>//RD directions.

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Effects of electroplastic rolling on mechanical properties and microstructure of low-carbon martensitic steel

Cited by 25 publications

References 33 publications

Effect of Repetitive High-Density Current Pulses on Plastic Deformation of Copper Wires under Stepwise Loading

Effect of Repetitive High-Density Current Pulses on Plastic Deformation of Copper Wires under Stepwise Loading

Electroplastic Effect during Tension and Bending in Duplex Stainless Steel

Effect of Rolling on Microstructure Evolution and Plastic Deformation Behavior of A473M Martensitic Stainless Steel

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