Friction stir welding of ultra high-purity aluminium thin sheets never to lower high conductivity at ultra-low temperature

2021 ◽  
pp. 1-13
Author(s):  
Hajime Yamamoto ◽  
Yusuke Aoyama ◽  
Kazuhiro Ito ◽  
Tetsuo Yamada ◽  
Manabu Tanaka ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Low Temperature ◽  
High Purity ◽  
High Conductivity ◽  
Thin Sheets ◽  
Friction Stir ◽  
Ultra High Purity ◽  
Purity Aluminium ◽  
High Purity Aluminium

scholarly journals Friction stir welding of ultrahigh-purity aluminum thin sheets never to lower high conductivity at ultra-low temperature

2020 ◽  
Vol 38 (4) ◽  
pp. 253-262
Author(s):  
Hajime YAMAMOTO ◽  
Yusuke AOYAMA ◽  
Kazuhiro ITO ◽  
Tetsuo YAMADA ◽  
Manabu TANAKA ◽  
...  
Keyword(s):  
Friction Stir Welding ◽  
Low Temperature ◽  
High Conductivity ◽  
Thin Sheets ◽  
Friction Stir

scholarly journals Re-examination of creep behaviour of high purity aluminium at low temperature

2010 ◽  
Vol 240 ◽  
pp. 012073 ◽  
Author(s):  
S Ueda ◽  
T Kameyama ◽  
T Matsunaga ◽  
K Kitazono ◽  
E Sato
Keyword(s):  
Low Temperature ◽  
High Purity ◽  
Creep Behaviour ◽  
Purity Aluminium ◽  
High Purity Aluminium

scholarly journals Microstructural Evolutions of 2N Grade Pure Al and 4N Grade High-Purity Al during Friction Stir Welding

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3606
Author(s):  
Tomoya Nagira ◽  
Xiaochao Liu ◽  
Kohasaku Ushioda ◽  
Hidetoshi Fujii
Keyword(s):  
Friction Stir Welding ◽  
Dynamic Recrystallization ◽  
Grain Refinement ◽  
High Purity ◽  
Cube Texture ◽  
Grain Structure ◽  
Welding Temperature ◽  
Friction Stir ◽  
Continuous Dynamic Recrystallization ◽  
Dislocation Annihilation

The grain refinement mechanisms along the material flow path in pure and high-purity Al were examined, using the marker insert and tool stop action methods, during the rapid cooling friction stir welding using liquid CO2. In pure Al subjected to a low welding temperature of 0.56Tm (Tm: melting point), the resultant microstructure consisted of a mixture of equiaxed and elongated grains, including the subgrains. Discontinuous dynamic recrystallization (DDRX), continuous dynamic recrystallization (CDRX), and geometric dynamic recrystallization are the potential mechanisms of grain refinement. Increasing the welding temperature and Al purity encouraged dynamic recovery, including dislocation annihilation and rearrangement into subgrains, leading to the acceleration of CDRX and inhibition of DDRX. Both C- and B/-type shear textures were developed in microstructures consisting of equiaxed and elongated grains. In addition, DDRX via high-angle boundary bulging resulted in the development of the 45° rotated cube texture. The B/ shear texture was strengthened for the fine microstructure, where equiaxed recrystallized grains were fully developed through CDRX. In these cases, the texture is closely related to grain structure development.

Shape rheocasting of high purity aluminium

2011 ◽  
Vol 64 (6) ◽  
pp. 479-482 ◽  
Author(s):  
U.A. Curle ◽  
H. Möller ◽  
J.D. Wilkins
Keyword(s):  
High Purity ◽  
Purity Aluminium ◽  
High Purity Aluminium

Recrystallization of high-purity aluminium during equal channel angular pressing

2007 ◽  
Vol 55 (7) ◽  
pp. 2211-2218 ◽  
Author(s):  
W. Skrotzki ◽  
N. Scheerbaum ◽  
C.-G. Oertel ◽  
H.-G. Brokmeier ◽  
S. Suwas ◽  
...  
Keyword(s):  
Equal Channel Angular Pressing ◽  
High Purity ◽  
Angular Pressing ◽  
Purity Aluminium ◽  
High Purity Aluminium

Further evidence for the presence of residual flaws in a thin oxide layer covering high purity aluminium

1993 ◽  
Vol 34 (12) ◽  
pp. 2099-2104 ◽  
Author(s):  
G.M. Brown ◽  
K. Shimizu ◽  
K. Kobayashi ◽  
G.E. Thompson ◽  
G.C. Wood
Keyword(s):  
Oxide Layer ◽  
High Purity ◽  
Thin Oxide Layer ◽  
Purity Aluminium ◽  
High Purity Aluminium ◽  
Thin Oxide
Sign in / Sign up

Export Citation Format

Share Document