X-ray photoelectron spectroscopy and corrosion studies of zinc phosphate coated on 7075-T6 aluminium alloy

1994 ◽  
Vol 29 (14) ◽  
pp. 3653-3657 ◽  
Author(s):  
W. F. Heung ◽  
Y. P. Yang ◽  
M. Y. Zhou ◽  
P. C. Wong ◽  
K. A. R. Mitchell ◽  
...  
Keyword(s):  
Aluminium Alloy ◽  
Photoelectron Spectroscopy ◽  
Zinc Phosphate ◽  
X Ray ◽  
Corrosion Studies

XPS and corrosion studies on zinc phosphate coated 7075-T6 aluminium alloy

1994 ◽  
Vol 29 (5) ◽  
pp. 1368-1373 ◽  
Author(s):  
W. F. Heung ◽  
Y. P. Yang ◽  
P. C. Wong ◽  
K. A. R. Mitchell ◽  
T. Foster
Keyword(s):  
Aluminium Alloy ◽  
Zinc Phosphate ◽  
Corrosion Studies

scholarly journals The Corrosion Inhibition of AA6082 Aluminium Alloy by Certain Azoles in Chloride Solution: Electrochemistry and Surface Analysis

Coatings ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 380 ◽  
Author(s):  
Klodian Xhanari ◽  
Matjaž Finšgar
Keyword(s):  
Surface Layer ◽  
Aluminium Alloy ◽  
Surface Analysis ◽  
Corrosion Inhibition ◽  
Photoelectron Spectroscopy ◽  
Secondary Ion Mass Spectrometry ◽  
Attenuated Total Reflectance ◽  
X Ray ◽  
Inhibition Effect ◽  
Secondary Ion

The corrosion inhibition effect of five azole compounds on the corrosion of an AA6082 aluminium alloy in 5 wt.% NaCl solution at 25 and 50 °C was investigated using weight loss and electrochemical measurements. Only 2-mercaptobenzothiazole (MBT) showed a corrosion inhibition effect at both temperatures and was further studied in detail, including with the addition of potassium iodide as a possible intensifier. Surface analysis of the MBT surface layer was performed by means of attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry techniques. The hydrophobicity of the MBT surface layer was also investigated.

Surface Characterization of an Extruded 6060 Al Alloy

2007 ◽  
Vol 29-30 ◽  
pp. 67-70
Author(s):  
Wei Zhang ◽  
Jim Metson ◽  
C.L. Nguyen ◽  
S. Chen
Keyword(s):  
Aluminium Alloy ◽  
Photoelectron Spectroscopy ◽  
Surface Characterization ◽  
Extrusion Direction ◽  
Surface Characteristics ◽  
Al Alloy ◽  
X Ray ◽  
Film Instability ◽  
Mg Content

The surface characteristics of an extruded 6060 aluminium alloy were investigated with X-ray Photoelectron Spectroscopy (XPS). The results revealed that the extruded surface was covered by oxides of aluminium and magnesium. The thickness of aluminium oxide was found to change along the extrusion direction with the thinnest and thickest oxide at the beginning and end of the extrudate, respectively. Magnesium segregation was found on the surface of the extrusion with the highest and lowest Mg concentration at the beginning and end of the extrudate, respectively. This is the inverse result of that expected where increasing Mg content was believed to be associated with film instability and thicker films.

A combined atomic force microscopy (AFM)/X‐ray photoelectron spectroscopy (XPS) study of organosilane molecules adsorbed on the aluminium alloy L157‐T6

1999 ◽  
Vol 9 (11) ◽  
pp. 2935-2941 ◽  
Author(s):  
Timothy R. E. Simpson ◽  
John F. Watts ◽  
Peter A. Zhdan ◽  
James E. Castle ◽  
Roger P. Digby
Keyword(s):  
Atomic Force Microscopy ◽  
Aluminium Alloy ◽  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Xps Study

scholarly journals XPS Study of Chemical Changes on the La/Ce Treated Surface of A361 Aluminium Alloy Exposed to Air at Temperatures up to500∘C

2009 ◽  
Vol 2009 ◽  
pp. 1-7 ◽  
Author(s):  
A. Pardo ◽  
S. Feliú ◽  
M. C. Merino ◽  
R. Arrabal ◽  
E. Matykina
Keyword(s):  
Rare Earth ◽  
Aluminium Alloy ◽  
Cerium Oxide ◽  
Photoelectron Spectroscopy ◽  
Oxide Coating ◽  
Conversion Coating ◽  
Chemical Changes ◽  
X Ray ◽  
Xps Study ◽  
Al Matrix

The chemical changes that take place on the rare earth treated surface of the A361 aluminium alloy exposed to air at temperatures between 100 and500∘Chave been examined using X-ray photoelectron spectroscopy (XPS). The most notable features discussed in this work are the disappearance of Mg and Si signals at the tested temperatures and disappearance of the Ce signal at temperatures of 400–500∘C. The biphasic microstructure of the A361 alloy, constituted by close to 12 wt% Si and the Al matrix, plays an important role in many of the results obtained. The notable growth of aluminium oxide across the conversion coating in the case of the Ce-treated surface is related to the structural transformation experienced by the cerium oxide coating at 400–500∘C.

Microstructure of the Passive Layer Formed on Different Austenitic Stainless Steels Implanted with Molybdenum

2009 ◽  
Vol 289-292 ◽  
pp. 175-184 ◽  
Author(s):  
C.M. Abreu ◽  
M.J. Cristóbal ◽  
Raul Figueroa ◽  
Xosé R. Nóvoa ◽  
G. Pena ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Photoelectron Spectroscopy ◽  
Austenitic Stainless Steels ◽  
Passive Layer ◽  
X Ray Diffraction ◽  
Chloride Medium ◽  
X Ray ◽  
Structural Modifications ◽  
Corrosion Studies ◽  
Glancing Angle

Two austenitic stainless steels have been implanted at 150 keV with Mo at a fluence of 3.5x1015 ions/cm2. The effects of ion implantation in the chemical composition of the passive films was evaluated by x-ray photoelectron spectroscopy (XPS) and glancing angle x-ray diffraction (GAXRD) was used to determine the induced structural modifications. The results of the pitting corrosion studies carried out in neutral chloride medium as well as the morphology of the localized attack are discussed.

scholarly journals Surface Chemistry of Aluminium Alloy Slid against Steel Lubricated by Organic Friction Modifier in Hydrocarbon Oil

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Ichiro Minami ◽  
Ayumi Sugibuchi
Keyword(s):  
Surface Chemistry ◽  
Aluminium Alloy ◽  
Photoelectron Spectroscopy ◽  
Passive State ◽  
Lubrication Mechanism ◽  
Low Friction ◽  
Friction Modifier ◽  
X Ray ◽  
Low Wear ◽  
Hydrocarbon Oil

The lubrication mechanism of aluminium alloy slid against steel was investigated from the standpoint of surface chemistry. Low friction and low wear were observed using glycerol mono-olate in a hydrocarbon as lubricant. Increase in the silicon content in the aluminium alloy during rubbing was observed by surface analyses using (1) Auger electron spectroscopy, (2) scanning electron microscopy along with energy dispersive X-ray spectroscopy, and (3) X-ray photoelectron spectroscopy. Mild removal of the passive state (aluminium oxide) from the uppermost surface by the additive during the running-in process was proposed as the lubrication mechanism. The importance of additive chemistry that improves the running-in process was pointed out.

X-ray photoelectron spectroscopy for corrosion studies

Langmuir ◽  
1987 ◽  
Vol 3 (6) ◽  
pp. 897-904 ◽  
Author(s):  
K. Asami ◽  
K. Hashimoto
Keyword(s):  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Corrosion Studies

Two dimensional Sr silicate grown on Si(001) studied using X-ray Photoelectron Spectroscopy

2006 ◽  
Vol 132 ◽  
pp. 87-90
Author(s):  
M. El Kazzi ◽  
G. Delhaye ◽  
S. Gaillard ◽  
E. Bergignat ◽  
G. Hollinger
Keyword(s):  
Photoelectron Spectroscopy ◽  
Two Dimensional ◽  
X Ray
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