Research and Application of Materials Science

Effect of electric pulse rolling on plastic forming ability of AZ91D magnesium alloy

LIUXinyu, ZHOUYuezhang, BOWenjie, ZHANGYong, GENGGuihong


AZ91D magnesium alloy rolled under four rolling conditions, namely cold rolling, electric pulse cold rolling, hot rolling and electric pulse hot rolling, and the first principles calculation of Mg with or without external electric field carried out. The results show that: The application of pulse current in the rolling process of AZ91D magnesium alloy can effectively improve the edge crack of the sample, optimize the texture of AZ91D magnesium alloy and reduce its texture strength, promote the generation of tensile twins and the transition from small Angle grain boundaries to large Angle grain boundaries, and thus improve the plastic forming ability of AZ91D magnesium alloy. Make it more prone to plastic deformation. Compared with ordinary rolling, the microhardness of α-Mg matrix decreases by 15%. The tensile strength and elongation increased from 137MPa and 3.4% to 169MPa and 4.7%, respectively. The results show that the stiffness of Mg decreases and the Poisson's ratio of Mg increases when the electric field applies. When the B/G value is greater than 1.75, the plasticity of Mg is improved. The fault energy at the base surface of Mg does not change much, while the fault energy at the prismatic surface of Mg decreases obviously, showing the external electric field mainly affects the prismatic surface slip of Mg, which makes the prismatic surface slip easier to start, and thus improves the plastic forming ability of Mg.


Electric pulse rolling; Electroplasticity; AZ91D; First principles calculation

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X. Hao, W.X. Hao, G.H. Geng, et al.. Effects of High-DensityPulse Currents on the Solidification Structures ofCu-SiCp/AZ91D Composites Advances in Materials Scienceand Engineering. 2019(1): 1-6.

Y. Xu, C. Chen, X.X. Zhang, et al.. Dynamic recrystallizationkinetics and microstructure evolution of an AZ91Dmagnesium alloy during hot compression MaterialsCharacterization. 2018(145): 39-52.

W.J. Li, K.K. Deng, X. Zhang, et al.. Microstructures, tensileproperties and work hardening behavior of SiCp/Mg-Zn-Cacomposites Journal of Alloys and Compounds. 2017(695):2215-2223.

K. Edalati, R. Uehiro, Y. Ikeda, et al.. Design and synthesis ofa magnesium alloy for room temperature hydrogen storageActa Materialia. 2018(149): 88.

J. Kuang, X.H. Li, R.K. Zhang, et al.. Enhanced rollability ofMg-3Al-1Zn alloy by pulsed electric current: a comparativestudy Materials & Design. 2016(100): 204.

J. Kuang, X.H. Li, R.K. Zhang, et al.. Enhanced rollability ofMg-3Al-1Zn alloy by pulsed electric current: a comparativestudy Materials & Design. 2016(100): 204.

P.J. Zhao, Z.H. Chen, C.F. Dong. Damage and Failure Analysisof AZ31 Alloy Sheet in Warm Stamping Processes Journal ofMaterials Engineering and Performance. 2016,25(7):2702.

N. Stanford, R.K.W. Marceau, M.R. Barnett. The effect ofhigh yttrium solute concentration on the twinningbehaviour of magnesium alloys Acta Materialia.2015(82):447.

I. Indhiarto, T. Shimizu, M. Yang. Effect of Peak Current Density on Tensile Properties of AZ31B Magnesium AlloyMaterials. 2021, 14(6):5.

K. Liu, X.H. Dong, H.Y. Xie, et al.. Influence of pulsedcurrent on deformation mechanism of AZ31B sheets duringtension Journal of Alloys and Compounds. 2016(676): 106.

Vitek, V. Intrinsic stacking faults in body-centred cubiccrystals. Philosophical Magazine,1968, 18(154): 773-786.

M. Yuasa, M. Hayashi, M. Mabuch, et al.. Improved plasticanisotropy of Mg-Zn-Ca alloys exhibiting high-stretchformability: A first-principles study Acta Materialia.2014(65): 207.

Guangyin Yuan, Yangshan Sun, Wenjiang Ding. Effects ofSb addition on the microstructure and mechanicalproperties of az91 magnesium alloy. Scripta Materialia,2000, 43(11): 1009-1013.

S. Sandlobes, M. Friak, S. Zaefferer, et al.. The relationbetween ductility and stacking fault energies in Mg andMg-Y alloys Acta Materialia. 2012, 60(6-7): 3011.

Zhang J, Mao C, Long C G, et al.. Phase stability, elasticproperties and electronic structures of Mg-Y intermetallicsfrom first-principles calculations[J]. Journal of Magnesium& Alloys, 2015, 3(2): 127-133.

S.F. Matar, R. Pottgen, B. Chevalier. Electronic andmagnetic structures and bonding properties of Ce2T2X( =nd element; X = Mg, Cd, Pb or Sn) intermetallics fromfirst principles Intermetallics. 2014(51): 18.



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