Paper Title:

Influence of Dynamic Recrystallisation on Texture Formation in ECAP deformed Nickel

Periodical Materials Science Forum (Volumes 558 - 559)
Main Theme Recrystallization and Grain Growth III
Edited by S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara
Pages 575-580
DOI 10.4028/www.scientific.net/MSF.558-559.575
Citation Werner Skrotzki et al., 2007, Materials Science Forum, 558-559, 575
Online since October 2007
Authors Werner Skrotzki, Burghardt Klöden, I. Hünsche, Robert Chulist, Satyam Suwas, László S. Tóth
Keywords Dynamic Recrystallization (DRX), Equal-Channel Angular Pressing (ECAP), Microstructure, Nickel Ni, Texture
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3N nickel has been deformed by equal channel angular pressing (ECAP) at 400°C up to 3 passes using route A. The texture with respect to position in the deformed billet, i.e. from top to bottom, has been measured with high-energy synchrotron radiation. It is characterized by texture components typical for simple shear in the intersection plane of the square-shaped 90° bent channel. Besides, an oblique cube component is observed. Orientation imaging microscopy clearly shows that this component is due to partial recrystallization. Intensities of the texture components as well as deviations from their ideal shear positions vary from the top to the bottom of the billet and with the number of passes. The change of the intensity of texture components and the texture gradient investigated is discussed. Special emphasis is put on the influence of dynamic recrystallization on texture and microstructure formation during ECAP of fcc metals.