首页|Mechanism of high-energy pulsed current-assisted rolling of 08AL carbon steel ultra-thin strip

Mechanism of high-energy pulsed current-assisted rolling of 08AL carbon steel ultra-thin strip

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To improve the plastic deformation performance of a 08AL carbon steel ultra-thin strip,a pulsed electric field was integrated into the plastic processing of the ultra-thin strip,and the effects of high-energy current on its deformation ability were investigated.Current-assisted tensile tests were employed,and the results clarified that the pulsed current could reduce the activation energy of faults and promoted dislocation slip within grains and at grain boundaries,leading to a decrease in the deformation resistance of the metal and an increase in its plastic properties.Under the current density of 2.0 A/mm2,the yield strength,tensile strength,and elongation of the rolled sample reached 425 MPa,467 MPa,and 12.5%,respectively.During the rolling process,it was found that the pulsed current promoted the dynamic recrystallization of the ultra-thin strip,reduced its dislocation density and deformation resistance,and promoted the coordinated deformation of the metal.

08AL ultra-thin stripHigh-energy pulsed currentMechanical propertyDislocation densityDynamic recrystallization

Zhong-kai Ren、Ya-nan Xu、Jia-zhao Chen、He Li、Rui-lin Yuan、Zhen-hua Wang、Tao Wang、Xiao Liu

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College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China

Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment(Ministry of Education),Taiyuan University of Technology,Taiyuan 030024,Shanxi,China

National Key Laboratory of Metal Forming Technology and Heavy Equipment,China National Heavy Machinery Research Institute Co.,Ltd.,Xi'an 710016,Shaanxi,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaOpen Research Fund from National Key Laboratory of Metal Forming Technology and Heavy EquipmentNatural Science Foundation of Shanxi ProvinceSpecial Funds for the Central Government to Guide Local Science and Technology Development

519741965227536152105390S2308100.W0120210302124426YDZX20191400002149

2024

钢铁研究学报(英文版)
钢铁研究总院

钢铁研究学报(英文版)

CSTPCD
影响因子:0.584
ISSN:1006-706X
年,卷(期):2024.31(2)
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