scholarly journals Through-Thickness Characterization of Microstructure and Texture in High Purity Aluminum Processed to High Strain by Accumulative Roll-Bonding

2007 ◽  
Vol 48 (8) ◽  
pp. 1978-1985 ◽  
Author(s):  
Naoya Kamikawa ◽  
Nobuhiro Tsuji ◽  
Xiaoxu Huang ◽  
Niels Hansen
Keyword(s):  
High Purity ◽  
Accumulative Roll Bonding ◽  
High Strain ◽  
Roll Bonding ◽  
High Purity Aluminum

EBSD and TEM Characterization of Ultrafine Grained High Purity Aluminum Produced by Accumulative Roll-Bonding

2006 ◽  
Vol 512 ◽  
pp. 91-96 ◽  
Author(s):  
Naoya Kamikawa ◽  
X. Huang ◽  
Nobuhiro Tsuji ◽  
Niels Hansen ◽  
Yoritoshi Minamino
Keyword(s):  
Misorientation Angle ◽  
High Purity ◽  
Accumulative Roll Bonding ◽  
Structural Parameters ◽  
Rolling Direction ◽  
Structural Features ◽  
High Angle ◽  
Roll Bonding ◽  
High Purity Aluminum

High purity aluminum (99.99% purity) was severely deformed by accumulative roll-bonding (ARB) to a thickness reduction of 98.4%. Quantitative microstructural characterization of the deformed sample was carried out by electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). EBSD scans at various locations from the sample surface to the mid-thickness revealed a fairly uniform and equiaxed structure, although a small fraction of an elongated structure parallel to rolling direction (RD) was also observed. Misorientation angle distributions for grain boundaries of which misorientation angle was larger than 2° were evaluated by EBSD, showing that more than 70% of the boundaries were high-angle ones (>15°). More detailed structural features, such as low-angle boundaries (<2°) and dislocations between boundaries were characterized by TEM. The TEM results indicated that about 17% of the boundaries have misorientations <2° and that the fraction of high-angle boundaries is about 52%. An estimated yield strength based on the structural parameters determined by TEM was in good agreement with the measured value.

scholarly journals HIGH STRAIN-RATE RESPONSE OF HIGH-PURITY ALUMINUM AT TEMPERATURES APPROACHING MELT

2009 ◽  
Author(s):  
S. E. Grunschel ◽  
R. J. Clifton ◽  
T. Jiao ◽  
Mark Elert ◽  
Michael D. Furnish ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Purity ◽  
High Strain ◽  
High Purity Aluminum

Confined recrystallization of high-purity aluminium during accumulative roll bonding of aluminium laminates

2012 ◽  
Vol 60 (11) ◽  
pp. 4661-4671 ◽  
Author(s):  
Paul Chekhonin ◽  
Benoît Beausir ◽  
Juliane Scharnweber ◽  
Carl-Georg Oertel ◽  
Tina Hausöl ◽  
...  
Keyword(s):  
High Purity ◽  
Accumulative Roll Bonding ◽  
Roll Bonding ◽  
Purity Aluminium ◽  
High Purity Aluminium

Synthesis and characterization of high-purity aluminum nitride nanopowder by RF induction thermal plasma

2014 ◽  
Vol 40 (6) ◽  
pp. 8117-8123 ◽  
Author(s):  
Kyung-In Kim ◽  
Sung-Churl Choi ◽  
Jin-Ho Kim ◽  
Woo-Seok Cho ◽  
Kwang-Taek Hwang ◽  
...  
Keyword(s):  
Aluminum Nitride ◽  
Thermal Plasma ◽  
High Purity ◽  
Synthesis And Characterization ◽  
Induction Thermal Plasma ◽  
High Purity Aluminum
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