Electron backscatter diffraction analysis of microstructural evolution in hot-deformed 6xxx series aluminum alloys

2002 ◽  
Vol 33 (3) ◽  
pp. 693-700 ◽  
Author(s):  
William H. van Geertruyden ◽  
Steven R. Claves ◽  
Wojciech Z. Misiolek
2009 ◽  
Vol 24 (8) ◽  
pp. 2617-2627 ◽  
Author(s):  
Huajie Yang ◽  
Yongbo Xu ◽  
Yasuaki Seki ◽  
Vitali F. Nesterenko ◽  
Marc André Meyers

The microstructural evolution inside adiabatic shear bands in Fe–Cr–Ni alloys dynamically deformed (strain rates > 104 s−1) by the collapse of an explosively driven, thick-walled cylinder under prescribed strain conditions was examined by electron backscatter diffraction. The observed structure within the bands consisted of both equiaxed and elongated grains with a size of ∼200 nm. These fine microstructures can be attributed to recrystallization; it is proposed that the elongated grains may be developed simultaneously with localized deformation (dynamic recrystallization), and the equiaxed grains may be formed subsequently to deformation (static recrystallization). These recrystallized structures can be explained by a rotational recrystallization mechanism.


2000 ◽  
Vol 6 (S2) ◽  
pp. 954-955
Author(s):  
Steven R. Claves ◽  
Wojciech Z. Misiolek ◽  
William H. Van Geertruyden ◽  
David B. Williams

Electron Backscattering Diffraction (EBSD) is an important tool for analyzing the crystal grain orientation of a microstructure and can be used to formulate conclusions about microtexture, texture determined from individual grains. This technique has been used to study a 6xxx series aluminum alloy's response to the deformation of the extrusion process. Extrusion is the process by which a billet of material is forced, under high pressure, through a die. The material undergoes a significant decrease in cross sectional area, and is formed into a shape equivalent to the geometry of the die orifice. Different bearing lands are shown in shown in Figure 1. These surfaces form the part, and are designed to control the metal flow making it uniform through the die, thus yielding good mechanical properties. This research was focused on the resultant microstructure. The shaded regions of Figure 2 show the two surface regions where EBSD measurements were taken.


2015 ◽  
Vol 24 (8) ◽  
pp. 3118-3128 ◽  
Author(s):  
Morteza Shamanian ◽  
Mahyar Mohammadnezhad ◽  
Mahdi Amini ◽  
Azam Zabolian ◽  
Jerzy A. Szpunar

Sign in / Sign up

Export Citation Format

Share Document