scholarly journals Corrosion-electrochemical behavior of an aluminum conductive E-AlMgSi alloy (aldrey) with tin in the environment of NaCl electrolyte

2019 ◽  
Vol 22 (2) ◽  
pp. 128-134
Author(s):  
I. N. Ganiev ◽  
A. P. Abulakov ◽  
J. H. Jayloev ◽  
F. A. Aliev ◽  
A. R. Rashidov
Keyword(s):  
Aluminum Alloys ◽  
High Strength ◽  
Sweep Rate ◽  
Potential Sweep Rate ◽  
Economic Feasibility ◽  
Potential Sweep ◽  
Conductive Material ◽  
Soft State ◽  
Winding Wire ◽  
The Cost

The economic feasibility of using aluminum as a conductive material is explained by the favorable ratio of its cost to the cost of copper. In addition, one should take into account the factor that the cost of aluminum remains practically unchanged for many years. When using conductive aluminum alloys for the manufacture of thin wire, winding wire, etc. Certain difficulties may arise in connection with their insufficient strength and a small number of kinks before fracture. In recent years, aluminum alloys have been developed, which even in a soft state have strength characteristics that allow them to be used as a conductive material. One of the promising areas for the use of aluminum is the electrical industry. Conductive aluminum alloys type E-AlMgSi (aldrey) are representatives of this group of alloys and treats heat-strengthened alloys. They are distinguished by high strength and good ductility. These alloys with appropriate heat treatment acquires high electrical conductivity. The wires made from it are used almost exclusively for overhead power lines.In the work presents the results of the study of the anodic behavior of aluminum alloy E-AlMgSi (aldrey) with tin, in a medium electrolyte 0.03; 0.3 и 3.0% NaCl. A corrosion-electrochemical study of alloys was carried out using the potentiostatic method on a PI-50-1.1 potentiostat at a potential sweep rate of 2 mV/s. It is shown that alloying E-AlMgSi (aldrey) c with tin increases its corrosion resistance by 20%. The main electrochemical potentials of the alloys when doping with tin are shifted to the positive range of values, and from the concentration of sodium chloride in the negative direction of the ordinate axis.

scholarly journals Corrosion and electrohemical behavior of aluminum conductor E-AlMgSi (Aldrey) alloy with tin in a medium electrolite NaCl

2019 ◽  
Vol 5 (3) ◽  
pp. 127-132
Author(s):  
Izatullo N. Ganiev ◽  
Aslam P. Abulakov ◽  
Jamshed H. Jayloev ◽  
Firdavs A. Aliev ◽  
Akram R. Rashidov
Keyword(s):  
Aluminum Alloys ◽  
High Strength ◽  
Economic Feasibility ◽  
Potential Sweep ◽  
Conductive Material ◽  
Soft State ◽  
Winding Wire ◽  
Overhead Power Lines ◽  
The Cost ◽  
Range Of Values

The economic feasibility of using aluminum as a conductive material is explained by the favorable ratio of its cost to the cost of copper. In addition, one should take into account the factor that the cost of aluminum has remained virtually unchanged for many years. When using conductive aluminum alloys for the manufacture of thin wire, winding wire, etc. Certain difficulties may arise in connection with their insufficient strength and a small number of kinks before fracture. In recent years, aluminum alloys have been developed, which even in a soft state have strength characteristics that allow them to be used as a conductive material. One of the promising areas for the use of aluminum is the electrical industry. Conducting aluminum alloys type of the E-AlMgSi (Aldrey) are representatives of this group of alloys and belong to heat-strengthened alloys. They are distinct by high strength and good ductility. These alloys, with appropriate heat treatment, acquire high electrical conductivity. The producing made from it are used almost exclusively for overhead power lines. The paper presents the results of a study of the anodic behavior of aluminum E-AlMgSi (Aldrey) alloy with tin in a medium electrolyte of 0.03; 0.3 and 3.0% NaCl. Corrosion-electrochemical studies of the alloys were carried out by the potentiostatic method in potentiostat PI-50-1.1 at a potential sweep speed of 2 mV/s. It is shown that alloying E-AlMgSi (Aldrey) alloy with tin increases its corrosion resistance by 20%. The main electrochemical potentials of the E-AlMgSi (Aldrey) alloy, when doped with tin, shift to a positive range of values, and from the concentration of sodium chloride in the negative direction of the ordinate.

scholarly journals Influence of bismuth additives on the thermophysical and thermodynamic properties of aluminum conductive alloy E-AlMgSi (Aldrey)

2020 ◽  
Vol 23 (1) ◽  
pp. 86-93
Author(s):  
I. N. Ganiev ◽  
A. P. Abdulakov ◽  
J. H. Jayloev ◽  
U. Sh. Yakubov ◽  
A. G. Safarov ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Capacity ◽  
Heat Transfer Coefficient ◽  
Aluminum Alloys ◽  
Gibbs Energy ◽  
Transfer Coefficient ◽  
Thermodynamic Functions ◽  
Economic Feasibility ◽  
Conductive Material ◽  
The Cost

The economic feasibility of using aluminum as a conductive material is explained by the favorable ratio of its cost to the cost of copper. It is also important that the cost of aluminum for many years remains virtually unchanged.When using conductive aluminum alloys for the manufacture of thin wire, winding wire, etc. Certain difficulties may arise in connection with their insufficient strength and a small number of kinks before fracture. In recent years, aluminum alloys have been developed, which even in a soft state have strength characteristics that allow them to be used as a conductive material.One of the promising areas for the use of aluminum is the electrical industry. Conducting aluminum alloys of the E-AlMgSi type (Aldrey) are representatives of this group of alloys. The paper presents the results of a study of the temperature dependence of heat capacity, heat transfer coefficient, and thermodynamic functions of an aluminum alloy E-AlMgSi (Aldrey) with bismuth. Research conducted in the "cooling" mode.It was shown that the temperature capacity and the thermodynamic functions of the alloy E-AlMgSi (Aldrey) with bismuth increase with temperature, and the Gibbs energy decreases. Additives of bismuth up to 1 wt.% Reduce heat capacity, heat transfer coefficient, enthalpy and entropy of the initial alloy and increase the value of Gibbs energy.

scholarly journals Effect of bismuth additions on the thermophysical and thermodynamical properties of E-AlMgSi (Aldrey) aluminum semiconductor alloy

2020 ◽  
Vol 6 (3) ◽  
pp. 107-112
Author(s):  
Izatullo N. Ganiev ◽  
Aslam P. Abulakov ◽  
Jamshed H. Jayloev ◽  
Umarali Sh. Yakubov ◽  
Amirsho G. Safarov ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Gibbs Energy ◽  
Thermodynamic Functions ◽  
Heat Conductivity ◽  
Economic Feasibility ◽  
Cooling Mode ◽  
Conductive Material ◽  
The Cost

The economic feasibility of using aluminum as a conductive material is explained by the favorable ratio of its cost to the cost of copper. In addition, one should take into account that the cost of aluminum has remained virtually unchanged for many years. When using conductive aluminum alloys for the manufacture of thin wire, winding wire, etc., certain difficulties may arise in connection with their insufficient strength and a small number of kinks before fracture. Aluminum alloys have been developed in recent years which even in a soft state have strength characteristics that allow them to be used as a conductive material. The electrochemical industry is one of the promising application fields of aluminum. E-AlMgSi (Aldrey) conductor aluminum alloys represent this group of alloys. This work presents data on the temperature dependence of heat capacity, heat conductivity and thermodynamic functions of the E-AlMgSi (Aldrey) aluminum alloy doped with bismuth. The studies have been carried out in "cooling" mode. It has been shown that the heat capacity and thermodynamic functions of the E-AlMgSi (Aldrey) aluminum alloy doped with bismuth increase with temperature and the Gibbs energy decreases. Bismuth additions of up to 1 wt.% reduce the heat capacity, heat conductivity, enthalpy and entropy of the initial alloy and increase the Gibbs energy.

Growth of Ultra-thin Titanium Dioxide Films by Complete Anodic Oxidation of Titanium Layers on Conductive Substrates

2012 ◽  
Vol 1494 ◽  
pp. 159-164
Author(s):  
Karsten Wolff ◽  
Petri Heljo ◽  
Donald Lupo
Keyword(s):  
Titanium Dioxide ◽  
Anodic Oxidation ◽  
Defect Density ◽  
Ph Value ◽  
Sweep Rate ◽  
Potential Sweep Rate ◽  
Minor Role ◽  
Potential Sweep ◽  
Titanium Dioxide Films ◽  
Conductive Substrates

ABSTRACTThe growth of thin and ultra-thin titanium dioxide layers was investigated. Oxide films were grown by galvanostatic and potentiodynamic anodisation of evaporated titanium layers on conductive substrates. It is shown that thin-film oxidation differs significantly from anodic oxidation of solid foils or plates, due to the sudden stop of anodisation process before complete oxidation of the thick films. Depending on the pH value and the potential sweep rate, the effective defect density and the dielectric constant of the anodized layers vary from 3·1019 cm-3 to 1020 cm-3and from 16 to 27, respectively, whereas the electrolyte temperature plays only a minor role.

scholarly journals EFFECT OF CALCIUM ON THE ANODIC BEHAVIOR OF ALUMINUM CONDUCTOR ALLOY AlTi0.1 IN THE MEDIUM OF THE ELECTROLYTE NaCl

2021 ◽  
Vol 58 ◽  
pp. 33-37
Author(s):  
Izatullo N. Ganiev ◽  
◽  
Rustam J. Fayzulloev ◽  
Furkatshokh Sh. Zokirov ◽  
◽  
...  
Keyword(s):  
Experimental Study ◽  
Aluminum Alloy ◽  
Corrosion Rate ◽  
Sweep Rate ◽  
Potential Sweep Rate ◽  
Anodic Behavior ◽  
Potential Sweep ◽  
Potentiostatic Method ◽  
Corrosion Pitting ◽  
Range Of Values

The article presents the results of an experimental study of the effect of calcium on the anodic behavior of the aluminum alloy AlTi0.1, in the medium of NaCl electrolyte. The study was carried out by the potentiostatic method in the potentiodynamic mode at the potential sweep rate of 2 mV / s. It is shown that the modification of the aluminum alloy AlTi0.1 with calcium promotes the displacement of the potentials of free corrosion, pitting formation, and repassivation to the positive range of values. The corrosion rate of the aluminum alloy AlTi0.1 when modified with 0.01-0.5 wt % calcium decreases by 10-17 %.

scholarly journals INFLUENCE OF ALKALINE – EARTH METALS ON ANODIC BEHAVIOR OF ALLOY ССУЗ IN NEUTRAL ENVIRONMENT OF THE ELECTROLYTE NaCl

2018 ◽  
pp. 84-89
Author(s):  
I. N. Ganiev ◽  
O. Kh. Niyezov ◽  
N. M. Mulloeva ◽  
B. B. Eshov
Keyword(s):  
Corrosion Rate ◽  
Current Density ◽  
Alkaline Earth ◽  
Chloride Ion ◽  
Sweep Rate ◽  
Potential Sweep Rate ◽  
Alkaline Earth Metals ◽  
Anodic Behavior ◽  
Potential Sweep ◽  
Antimony Alloy

The anodic behavior of a lead-antimony alloy (3 wt% Sb) doped with alkaline-earth metals was investigated in potentiostatic method in the potentiodynamic mode at a potential sweep rate of 2 mV/s and it was shown that with an increase in the content of alkaline earth metals in the alloy (SSUZ), the potentials of free Corrosion and pitting are slightly shifted to the positive region. As the concentration of the chloride ion in the electrolyte increases, these potentials decrease. The current density of corrosion and, accordingly, the corrosion rate of alloys with an increase in the content of alkaline earth metals are reduced by 75–85%, and the concentration of chloride ion increases.In transition from alloys with calcium to alloys with strontium, the corrosion rate of alloys increases by 20–30%, and to alloys with barium it decreases by 25–30%.

scholarly journals Anodic behaviour of Zn0.5Al doped with molybdenum in acidic, neutral and alkaline media

2021 ◽  
Vol 11 (2) ◽  
pp. 187-194
Author(s):  
Z. R. Obidov ◽  
P. R. Ibrohimov ◽  
F. A. Rahimov ◽  
I. N. Ganiev
Keyword(s):  
Sweep Rate ◽  
Potential Sweep Rate ◽  
Alkaline Media ◽  
Favourable Effect ◽  
Neutral Medium ◽  
Potential Sweep ◽  
Stationary Potential ◽  
Zinc Alloys ◽  
Anodic Behaviour ◽  
Acidic And Alkaline Media

The paper presents the results of a potentiodynamic study of the anodic behaviour of Zn0.5Al doped with molybdenum in the acidic (0.1 M, pH = 1; 0.01 M, pH = 2; 0.001 M, pH = 3), neutral (0.03, 0.3, 3%, pH = 7) and alkaline (0.001 M, pH = 10; 0.01 M, pH = 11; 0.1 M, pH = 12) media of HCl, NaCl and NaOH electrolytes. In the potentiodynamic mode with an electrode potential sweep rate of 2 mV/s, all Zn0.5Al-Mo samples containing from 0.01 to 1.0 wt% of molybdenum demonstrated a shift in the potentials of corrosion, pitting formation and repassivation. These potentials shift towards negative values in acidic and alkaline media, while shifting to positive values in a neutral medium. It was established that an increase in the concentration of electrolytes led to a shift of all the considered potentials towards negative values in all media - acidic, neutral and alkaline. This dependence is associated with the specific features of the process of anodic dissolution of alloys during the formation of an oxide film on their surface. The significance of the dependence of the stationary potential of free corrosion of alloys on time for establishing the passivity of surfaces in acidic, neutral and alkaline media was shown. It was determined that zinc alloys doped with molybdenum are resistant to pitting corrosion in all the investigated media. This resistivity is particularly high in acidic (0.001 M), neutral (0.03%) and alkaline (0.001 M) media of HCl, NaCl and NaOH electrolytes. The favourable effect of molybdenum on both the anodic behaviour of Zn0.5Al and the overall increase in the corrosion resistance of alloys was demonstrated. In comparison with undoped Zn0.5Al alloys, the corrosion rate of alloys doped with molybdenum (0.01-1.0 wt%) is 2-2.5 times lower. The proposed compositions of Zn0.5Al-Mo alloys can be used as noncorrosive coatings for steel products.

Sign in / Sign up

Export Citation Format

Share Document