The role of electron tunnelling in the development of chemical conversion coatings on high purity aluminium

1993 ◽  
Vol 34 (11) ◽  
pp. 1853-1857 ◽  
Author(s):  
K. Shimizu ◽  
G.M. Brown ◽  
K. Kobayashi ◽  
G.E. Thompson ◽  
G.C. Wood
Keyword(s):  
High Purity ◽  
Chemical Conversion ◽  
Conversion Coatings ◽  
Electron Tunnelling ◽  
Purity Aluminium ◽  
High Purity Aluminium

The Role of Fe on the Grain Refinement of High Purity Aluminium

2012 ◽  
Vol 538-541 ◽  
pp. 2264-2268 ◽  
Author(s):  
Yi Jie Zhang ◽  
Nai Heng Ma ◽  
Brian J. McKay ◽  
Xian Feng Li ◽  
Hao Wei Wang
Keyword(s):  
Grain Refinement ◽  
High Purity ◽  
Solute Concentration ◽  
Grain Structure ◽  
Grain Refiner ◽  
Purity Aluminium ◽  
High Purity Aluminium ◽  
Solid Liquid Interface ◽  
Solid Liquid

The role of Fe on the grain refinement of high purity aluminium (HPAl) was investigated after adding commercial Al-5Ti-1B grain refiner rod. Experimental results show that with a 0.08% Fe addition, the grain structure at chill zone of the HPAl sample changes from coarse to fine equiaxed grains. More importantly, the grain size observed at the centre of the HPAl sample decreased from 500±50µm to 206±30µm. The improvement has been attributed to the interfacial segregation and solute concentration of the Fe at the solid-liquid interface.

Precipitation Behavior in High-Purity Aluminium Alloys with Trace Elements - The Role of Quenched-in Vacancies

2018 ◽  
Vol 215 (24) ◽  
pp. 1800375 ◽  
Author(s):  
Frank Lotter ◽  
Uwe Muehle ◽  
Mohamed Elsayed ◽  
Alaa M. Ibrahim ◽  
Thomas Schubert ◽  
...  
Keyword(s):  
Trace Elements ◽  
High Purity ◽  
Aluminium Alloys ◽  
Precipitation Behavior ◽  
Purity Aluminium ◽  
High Purity Aluminium

The growth of chromate conversion coatings on high purity aluminium

1993 ◽  
Vol 34 (7) ◽  
pp. 1045-1054 ◽  
Author(s):  
G.M. Brown ◽  
K. Shimizu ◽  
K. Kobayashi ◽  
G.E. Thompson ◽  
G.C. Wood
Keyword(s):  
High Purity ◽  
Conversion Coatings ◽  
Chromate Conversion Coatings ◽  
Purity Aluminium ◽  
High Purity Aluminium

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

Structure Development during ECAP and Subsequent Creep of Aluminium

2007 ◽  
Vol 539-543 ◽  
pp. 493-498 ◽  
Author(s):  
Ivan Saxl ◽  
Vàclav Sklenička ◽  
L. Ilucová ◽  
Milan Svoboda ◽  
Petr Král
Keyword(s):  
High Purity ◽  
Grain Orientation ◽  
Orientation Imaging Microscopy ◽  
Structural Inhomogeneity ◽  
Structure Development ◽  
Creep Fracture ◽  
Orientation Imaging ◽  
Purity Aluminium ◽  
High Purity Aluminium ◽  
Creep Loading

Considerable structural inhomogeneity and anisotropy were found even after eight ECAP passes in high purity aluminium and the creep loading of ECAP material at 473K, 15MPa resulted in scattered fracture times ~ 20-60 hours. The structure revealed by orientation imaging microscopy with different disclination bounds was analysed by stereological methods. The effect of inhomogeneity and grain orientation on the creep fracture time was assessed.

Sign in / Sign up

Export Citation Format

Share Document