Rapid Galvanostatic Method for Corrosion Protection Ability Determination of Chromate Films on Al and Al Alloys

2007 ◽  
Keyword(s):  
Corrosion Protection ◽  
Al Alloys ◽  
Galvanostatic Method

scholarly journals Determination of Protective Potential in the Zero Charge Corrosion Protection System

2020 ◽  
Vol 957 ◽  
pp. 012048
Author(s):  
Shaiful Rizam Shamsudin ◽  
Rajaselan Wardan ◽  
Azmi Rahmat ◽  
Mohd Nazree Derman ◽  
Muhamad Syazwan Sanusi ◽  
...  
Keyword(s):  
Corrosion Protection ◽  
Protection System ◽  
Protective Potential ◽  
Zero Charge

Solidification Process, Microstructure, Density and Hardness of the Mg-Al Alloys with Zn, Cu, Ni and AlTiB Additions

2011 ◽  
Vol 176 ◽  
pp. 91-98
Author(s):  
Franciszek Binczyk
Keyword(s):  
Thermal Analysis ◽  
Regression Analysis ◽  
Operating Temperature ◽  
Solidification Process ◽  
Al Alloys ◽  
Pouring Temperature ◽  
Significance Level ◽  
Solidification Parameters ◽  
Microstructure Density

The paper presents the results of the investigations of the solidification process of magnesium alloys containing 5 and 10 wt.% Al, the additions of Zn, Cu, Ni, and of an AlTiB master alloy. The plotted DTA (derivative thermal analysis) curves were used for the determination of solidification parameters Tliq, Teut and Tsol. Knowledge of these parameters is very important in determination of alloy pouring temperature and maximum casting operating temperature. On samples taken from the area of temperature measurements, the chemical composition and microstructure were determined. The density and hardness HB were measured as well. Applying the method of multiple regression analysis at the significance level α = 0.1, the intensity and direction of the effect of alloying elements on the solidification parameters, density and hardness HB of castings were evaluated.

Plasma Surface Treatment: Effects on Mechanical and Corrosion Protection Properties of Hybrid Sol–Gel Coatings

2019 ◽  
Author(s):  
R. Subasri
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Surface Treatment ◽  
Corrosion Protection ◽  
Sol Gel ◽  
Surface Cleaning ◽  
Al Alloys ◽  
Plasma Surface ◽  
Wet Chemical ◽  
Pre Treatment

Surface cleaning and activation of substrates are two critical processes that affect the mechanical and corrosion resistance properties of protective coatings when deposited on the substrates. Surface cleaning removes the contaminants, for example, grease on the substrate, and surface activation introduces active bonds on the substrate thereby increasing the surface free energy. Conventionally, surface cleaning and activation of aluminum and its alloys are carried out by a wet chemical technique. A convenient and safe alternate to the wet chemical cleaning/activation would be to use plasma for the same purpose. Plasma surface pre-treatment greatly improves adhesion of coatings deposited, which is very vital for good corrosion protection and mechanical properties such as scratch and abrasion resistance. Cold and atmospheric air plasma treatments have been the most widely studied pre-treatments for Al alloys. This article will discuss the advancements in the use of plasma treatment on Al/Al alloys and its effect on corrosion resistance and mechanical properties of coatings deposited after the surface treatment.

S84 Determination of the Residual Stress Fields Around Scratches in Al Alloys

2008 ◽  
Vol 23 (2) ◽  
pp. 187-187
Author(s):  
M. K. Khan ◽  
M. E. Fitzpatrick ◽  
L. Edwards ◽  
S. V. Hainsworth
Keyword(s):  
Residual Stress ◽  
Al Alloys ◽  
Stress Fields
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