Effect Of High Density Current Pulses On Microstructure And

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This work investigates the effects of high-current pulsed electron beam (HCPEB) irradiation on multi-layered TiN/TiCN/Al2O3 coatings deposited via chemical vapor deposition The plasticity of a material generally decreases after grain refinement by severe plastic deformation (SPD). In this paper, an energy-efficient electropulsing method is

论文—-中国科学院金属研究所

In this study, an energy-saving and highly efficient high-density pulsed electric current (HDPEC) method was used to improve the formability of the aluminum alloy A6061 In this study, a high density electric current pulse (ECP) treatment was introduced to instead of the conventional solution treatment. The eect of ECP treatment on the dissolution and re

Abstract The effects of electric current pulse (ECP) on the mechanical properties and the microstructures of as-quenched medium carbon steel specimens were investigated. Pulse current self-resistance heating (PCT), TEMF, and DPCEMF tensile tests were conducted to study the effects of pulse current and high strain rate deformation on the The effects of supercritical CO 2 conditions and reverse pulse current density on microstructure, crystal orientation, grain size, GQDs quality, mechanical properties, and

This suggests that during the pulse on-time, the high instantaneous current density forces part of the SPS to desorb, thereby increasing the number of active sites on the copper The present study introduces a novel method of high-density pulsed electric current (HDPEC) as a substitute for the conventional annealing heat treatment process to

The relationship between microstructure and mechanical properties during the tensile deformation of TC4 is investigated using low-frequency high-density pulsating current.

The effects of electric current on the microstructure and texture evolution of the Ti 2 AlNb alloy during hot compression were systematically studied. This paper describes the preparation of novel FeCoNiMoW high-entropy alloy coatings using the pulse current electrodeposition method and the effect of pulse current

Effect of High Density Electric Current Pulse on Solidification

The EPT, also known as the electric current pulses treatment, [11] is a newly developed processing method that applies a high density of current pulses to materials in a

Hosoi et al. [7] observed a temporary delay effect on crack propagation by healing a fatigue crack with a controlled high-density electric current field. In this study, the fatigue In addition, electric field technology having advantages of high energy density, cleanliness, low cost, and precise control is also an effective method to directly control the The annealing process is usually used to heat-treat cold-deformed 304 stainless steel to improve its microstructure and properties to a certain extent; however, it requires a

In this paper, microstructure evolution in metals induced by high density electric current pulses (ECPs) treatment, such as grain refinement, formation of oriented microstructure and Abstract As a kind of special energy field assisted plastic forming, electric pulse assisted plastic forming combines multiple physical fields, such as thermal, electrical, magnetic

The effects of current density on the microstructure, phase structure, microhardness, and tribological properties of the composite coating were studied. The results A long-term interest in achieving greater formability of metallic parts with smaller forces and less energy has prompted numerous investigations into the effects of an applied

Effect of High Density Current Pulses on Microstructure and Mechanical Properties of Dual-Phase Wrought Superalloy [J]. Acta Metallurgica Sinica (English Letters), 2021, 34 (12): 1635-1644.

To the best of our knowledge, no report is available regarding the effects of electric pulse current on the mechanical properties and microstructure in an ultralight Mg–Li–Al–Zn alloy. Abstract High pulsed current density has both thermal and athermal effects on the metals, meaning that it can be used to promote the metal forming efficiency. Additionally, it can

Effects of electrical pulse on metal deformation behaviors

Zhang J, Liu J D, Zhang X F, et al. Effect of high density current pulses on microstructure and mechanical properties of dual-phase wrought superalloy [J]. Acta Metall. Sin. Abstract The effect of high-density pulsed electric current (HDPEC) on the microstructure evolution and corresponding changes in the mechanical properties of the

High current pulsed electron beam (HCPEB) treatment is an acceptable method for surface modification of materials such as alloys and ceramics [[19], [20], [21], [22], [23]]. The To improve the mechanical properties of the pre-deformed SUS 304 ultra-thin strip by regulating its microstructure, the paper uses high energy pulsed current to treat the pre By applying high-density electric current pulses (ECP) on the Cu–Zn alloy, the high-temperature precipitated phase is explored and the related mechanical properties are

Here, we report a new method of pulse current assisted treatment in short time after rolling. The influence of current density and treatment time was systematically studied. The influence of pulse frequency (5–5000 Hz) on the microstructure, microhardness, high-temperature wear resistance and high-temperature resistance of the S1 This work thoroughly investigated the microstructure of laser powder bed fusion (LPBF) Ti64 alloy induced by electropulsing (ECP) with different current densities. The results

In this work, the AlCoCrFeNi 2.1 eutectic high-entropy alloy (EHEA) was subjected to 800 V electric current pulse (ECP) with frequencies of 2, 5, 10, and 20 Hz during the

Annealing Effect of High-Density Pulsed Electric Current

Fine recrystallized grains, local high density dislocation tangles and local uniformly distributed θ-MnNi phases were found in the microstructure of alloy after EPT, which played a

The technology of high-density electropulsing has been applied to increase the performance of metallic materials since the 1990s and has shown significant advantages over

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