Paper Title:
Comparison of Single Crystalline and Polycrystalline Behavior under High Pressure Torsion
  Abstract

By using techniques of severe plastic deformation a metallic material can be subjected to an enormous strain that is not achievable by conventional methods of deformation. In this study nickel single crystals with different crystallographic orientation and nickel polycrystals were deformed by high pressure torsion. All nickel samples were processed up to the evolution of a saturation microstructure where no further hardening of the material can be observed. In this region all samples develop a similar microstructure and micro-texture. The differences in the fragmentation of the microstructure and the micro-texture development between the single crystals and the polycrystalline aggregate were examined using EBSD. A major difference between single crystals and polycrystals was not only the microstructure evolution at low equivalent strains, but also the development of a stable micro-texture, which is achieved earlier by the use of a polycrystalline aggregate.

  Info
Periodical
Edited by
P. B. Prangnell and P. S. Bate
Pages
277-282
DOI
10.4028/www.scientific.net/MSF.550.277
Citation
M. Hafok, R. Pippan, "Comparison of Single Crystalline and Polycrystalline Behavior under High Pressure Torsion", Materials Science Forum, Vol. 550, pp. 277-282, 2007
Online since
July 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Pablo Rodriguez-Calvillo, Yvan Houbaert
Abstract:High silicon steel is used for electrical applications because its electrical resistivity is increased and the magnetostriction is reduced....
15
Authors: Yan Li, Xiao Hong Chen, Ping Liu, Lin Hua Gao, Bao Hong Tian
Abstract:The behavior of plastic deformation of Cu-15Cr-0.1Zr in-situ composite under different degree of cold drawing deformation was analyzed by...
2191
Authors: Xiao Yu Zhong, Guang Jie Huang, Fang Fang He, Qing Liu
Abstract:Uni-axial tensile plastic deformation behavior of rolled magnesium alloy AZ31B under the temperature range from room temperature(RT) to 250°C...
219
Authors: Wojciech Wajda, Henryk Paul
Abstract:The paper describes the mechanism of deformation at 77 K of pure aluminum bicrystals of different grain orientations. The following...
108