Effect of electropulsing on deformation behavior, texture and microstructure of 5A02 aluminum alloy during uniaxial tension

Yan, Cong Ming; Li, Ning; Jiang, Huawen; Wang, Duzhen; Li, Lin

doi:10.1016/j.msea.2015.04.058

Cited by 19 publications

(5 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, when the experimental temperature decreases to −50 °C, parallel dislocation bands can be clearly observed (see Fig. 2b ), indicates planar slipping of dislocation 20 .…”

Section: Resultsmentioning

confidence: 97%

“…In general, the serrated characteristics in stress-strain curve indicate the occurrence of heterogeneous deformation. In this case, plastic stains are localized in very small regions such as shear bands or Portevin-Le Chatelier (PLC) bands, which finally causes the catastrophic fracture of the sample 20 . Therefore, it can be well understood that the decay of serrations with decreasing temperature from 20 °C to −50 °C corresponds to the increase of plastic strains, as depicted in Fig.…”

Section: Discussionmentioning

confidence: 99%

“…According to “cross-core diffusion” model, the concentration of solute atoms ( c ( t )) around the dislocation can be expressed as 23 in which C 0 = 2.5% is the bulk solute concentration 20 , ΔW = 0.13 eV is the average binding energy difference, β = 1/kT ( k = 1.38 × 10 −23 J/K is the Boltzmann constant and T is the absolute temperature), is the transition rate 23 ( v 0 = 3.8 × 10 13 s −1 28 is the attempt frequency and Δ H c = 0.97 eV 23 is the average activation enthalpy). By applying the data listed in Table 2 , the concentration of solute atoms around dislocations can be calculated and plotted in Fig.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Low temperature deformation behavior of an electromagnetically bulged 5052 aluminum alloy

Wang

et al. 2016

Sci Rep

Self Cite

View full text Add to dashboard Cite

The fundamental understanding of the deformation behavior of electromagnetically formed metallic components under extreme conditions is important. Here, the effect of low temperature on the deformation behavior of an electromagnetically-bulged 5052 aluminum alloy was investigated through uniaxial tension. We found that the Portevin-Le Chatelier Effect, designated by the serrated characteristic in stress-strain curves, continuously decays until completely disappears with decreasing temperature. The physical origin of the phenomenon is rationalized on the basis of the theoretical analysis and the Monte Carlo simulation, which reveal an increasing resistance to dislocation motion imposed by lowering temperature. The dislocations are captured completely by solute atoms at −50 °C, which results in the extinction of Portevin-Le Chatelier. The detailed mechanism responsible for this process is further examined through Monte Carlo simulation.

show abstract

“…However, when the experimental temperature decreases to −50 °C, parallel dislocation bands can be clearly observed (see Fig. 2b ), indicates planar slipping of dislocation 20 .…”

Section: Resultsmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Low temperature deformation behavior of an electromagnetically bulged 5052 aluminum alloy

Wang

et al. 2016

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, speculation about the effect of pulse current is not limited to the effect of heating rate. Several researchers have concluded that the dislocation movement, reaction and sub-grain growth in the metal are accelerated due to pulse current [103]. The flow of electrons will be generated when the current passes through metal.…”

Section: Recrystallizationmentioning

confidence: 99%

“…It was an important finding that pulsed current induced recrystallization grains are randomly nucleated but have directional growth. Yan et al [103] found that a small amount of cube texture {100} 〈100〉 remained in the uniaxial tensile Al alloy sample without the influence of any electric pulse. However, the intensity of cube texture becomes obvious with the increase of electric pulse intensity.…”

Section: Texture Evolutionmentioning

confidence: 99%

Effects of electrical pulse on metal deformation behaviors

Huang,

Yang,

Xing

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

As a kind of special energy field assisted plastic forming, electric pulse assisted plastic forming combines multiple physical fields, such as thermal, electrical, magnetic and mechanical effects, has multiple effects on metal. It has a good industrial application prospect in the fields of directional microstructure regulation of materials and preparation of new materials. The flow stress of metal materials can be effectively reduced by electro-pulse assisted forming. The action mechanism of pulse current includes thermodynamics (Joule heating effect) and kinetic (pure electro-plastic effect or athermal effect). Thermodynamically, electric pulses can be used to provide the energy for dislocation migration and atomic diffusion, and aid in microstructure changes such as recrystallization, phase transition and microcrack healing of metals. In terms of dynamics, electric pulse has an effect on the speed and path of dislocation structure evolution. On this basis, a series of theoretical models for accurately predicting the flow stress of materials in electrically assisted forming process were formulated by combining the stress-strain constitutive relationship considering the temperature rise effect and the pure electro-plastic effect. The accuracy of the predicting model is greatly enhanced by the introduction of electrical parameters. The mechanism for electrically assisted forming was further revealed.

show abstract

Tensile Deformation and Fracture Behavior of AA5052 Aluminum Alloy under Different Strain Rates

Zhu

Zhang

Xie

et al. 2021

J. of Materi Eng and Perform

View full text Add to dashboard Cite

Effect of electropulsing on deformation behavior, texture and microstructure of 5A02 aluminum alloy during uniaxial tension

Cited by 19 publications

References 58 publications

Low temperature deformation behavior of an electromagnetically bulged 5052 aluminum alloy

Low temperature deformation behavior of an electromagnetically bulged 5052 aluminum alloy

Effects of electrical pulse on metal deformation behaviors

Tensile Deformation and Fracture Behavior of AA5052 Aluminum Alloy under Different Strain Rates

Contact Info

Product

Resources

About