The formation of PSB-like shear bands in cyclically deformed ultrafine grained copper processed by ECAP

作者: S.D. Wu , Z.G. Wang , C.B. Jiang , G.Y. Li , I.V. Alexandrov

DOI: 10.1016/S1359-6462(03)00141-6

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摘要: Cyclic deformation was performed on ultrafine grained copper processed by ECAP. Shear bands (SBs) and adjacent microstructures were investigated using electron channeling contrast in scanning microscope. The possible formation mechanism of SB discussed based the characteristic distribution defects introduced (C) 2003 Acta Materialia Inc. Published Elsevier Science Ltd. All rights reserved.

参考文章(9)
V.M. Segal, Materials processing by simple shear Materials Science and Engineering: A. ,vol. 197, pp. 157- 164 ,(1995) , 10.1016/0921-5093(95)09705-8
S. R. Agnew, A. Yu. Vinogradov, S. Hashimoto, J. R. Weertman, Overview of fatigue performance of Cu processed by severe plastic deformation Journal of Electronic Materials. ,vol. 28, pp. 1038- 1044 ,(1999) , 10.1007/S11664-999-0181-0
S.R Agnew, J.R Weertman, Cyclic softening of ultrafine grain copper Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 244, pp. 145- 153 ,(1998) , 10.1016/S0921-5093(97)00689-8
A. Vinogradov, V. Patlan, S. Hashimoto, K. Kitagawa, Acoustic emission during cyclic deformation of ultrafine-grain copper processed by severe plastic deformation Philosophical Magazine. ,vol. 82, pp. 317- 335 ,(2002) , 10.1080/01418610208239601
S. Hashimoto, Y. Kaneko, Kazuo Kitagawa, Alexei Vinogradov, Ruslan Valiev, On the Cyclic Behavior of Ultra-Fine Grained Copper Produced by Equi-Channel Angular Pressing Journal of Metastable and Nanocrystalline Materials. pp. 593- 598 ,(1999) , 10.4028/WWW.SCIENTIFIC.NET/MSF.312-314.593
U. Essmann, U. Gösele, H. Mughrabi, A model of extrusions and intrusions in fatigued metals I. Point-defect production and the growth of extrusions Philosophical Magazine A. ,vol. 44, pp. 405- 426 ,(1981) , 10.1080/01418618108239541