研究了脉冲电流对2091铝锂合金超塑变形中动态再结晶及动力学的影响结果表明,脉冲电流加速动态再结晶,减小形核时的平均晶粒直径.脉冲电流能加快位错墙的形成并使其角度增大,使再结晶形核率提高.脉冲电流加快位错在晶界上的攀移及消失、减小形核界面两边的能量差,降低形核界面的迁移速率及再结晶形核的长大速率分析了脉冲电流作用下的动态再结晶动力学行为
参考文献
| [1] | H.Gudmundson, D.Brools, J.A.Went, Mechanism of continuous recrystallization in an Al-Zr-Si alloy,Atca. Metall, 39(1), 19(1991) |
| [2] | Liu Zhiyi, Cui Jianzhong, Bai Guangrun, Mechanism for Dynamic recrystallization by subgrain tilt in 2091alloy, Meter Sci. Prog(sinica), 6(6), 472(1992) |
| [3] | Liu Qing, Huang Xiaoxu, Yao Mei and Yang Jinfeng, On deformation induced continuous recrystallization in a superplastic Al-Li-Cu-Mg-Zr alloy, Atca Metall, 40(7), 1753(1992) |
| [4] | T.Sakai, M.Ohashi, Dislocation substructure developed during dynamic recrystallization in polycrystalline nickel, Mater. Sci. Tech., 6(12), 1251(1990) |
| [5] | K.Okazaki, M.Kagawa, H.Conrad, Additional results on the electroplastic effect in rnetals, Scr. Metall, 13(4),277(1079) |
| [6] | K.Okazaki, M.Kagawa, H.Conrad, An evaluation of the contribution of skin, pinch and heating effects to the electroplastic effect in titanium, Mater Sci Eng, 45(1), 109(1980) |
| [7] | A.F.Spreacher, S.L.Manan, H.Conrad, On the mechanisms for the electroplastic effect in metals, Acta. Metal,34(7), 1145(1986) |
| [8] | R.Laudaner, J.W.F.Woo, Driving force in electromigration, Phys Rev B, 10(4), 1266(1974) |
| [9] | A.K.Das, S.R.Peierls, The force in electromigration, J.Phys C: Solid Sta. Phys, 8(11), 3348(1975) |
| [10] | R.P. Gupta, Y.Serruys, G.Brebec, Y.Adda, Calculation of the effective valence for electromigration in niobium, Phys. Rev. B, 27(2), 672(1983) |
| [11] | S.H.Paul, K.Thomas, Electromigration in metals, Rep. Prog. Phys, 52(1), 301(1989) |
| [12] | W.D.Cao, X.P.Lu, A.F.Spreacher, H.Conrad, Superplastic deformation behavior of 7475 aluminum alloy in an electric field, Mater. Sci., Eng, A129(1), 157(1990) |
| [13] | Xu Zhensheng, Lai Zuhan, effect of electric current on the recrystallization behaviior of cold worked-Ti, Scr.Metall, 22(2), 187(1988) |
| [14] | H.Conrad, N.Karam, S.Mannan, A.F.Spreacher, Effect of electric current pulse the recrystallization kinetics of copper, Scr. Metall, 22(2), 235(1988) |
| [15] | H.Conrad, N.Karam, S.Mannan, Effect of prior cold work on the influence of electric current pulses on the recrystallization of copper, Scr. Metall, 18(3), 275(1984) |
| [16] | H.Conrad, Z.Guo, A.F.Spreacher, Effects of electropulse duration and frequency on growth in Cu, Scr. Metall,24(2), 359(1990) |
| [17] | Liu Zhiyi, Cui Jianzhong and Bai Guangrun, Effects of current pulse on superplasticity and fracture behavior of 2091 Al-Li-alloy, Acta. Metall(sinica), 6A(4), 264(1993) |
| [18] | Liu Zhiyi, Gui Jianzhong and Bai Guangrun, Electro-superplasticity in 2091 Al-Li alloy Trans. Nfsoc(sinica),4(1), 85(1994) |
| [19] | 刘国勋,金属学原理(北京,冶金工业出版社,1980)p.350(LIU Guoxun, Metallography (Beijing, Press of Metallurgy Industry, 1980) p.350) |
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