Influence of Hard Anodizing on the Mechanical and Corrosion Properties of Different Aluminum Alloys

2019 ◽  
Vol 8 (6) ◽  
pp. 861-870
Author(s):  
Hagar Ashour Elkilany ◽  
Madiha A. Shoeib ◽  
Omar E. Abdel-Salam
Keyword(s):  
Aluminum Alloys ◽  
Corrosion Properties ◽  
Hard Anodizing ◽  
Mechanical And Corrosion Properties

scholarly journals Mechanical behavior and corrosion properties of some AA6xxx aluminum alloys in T5 temper

2006 ◽  
Vol 12 (4) ◽  
pp. 231-235
Author(s):  
Kemal Delijic ◽  
Vanja Asanovic ◽  
Dragan Radonjic
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloys ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Continuous Cast ◽  
Corrosion Properties ◽  
Aqueous Sodium Chloride Solution ◽  
Aqueous Sodium ◽  
The Press ◽  
Mechanical And Corrosion Properties

The paper describes the mechanical and corrosion properties of three heat treatable extruded Al-Mg-Si aluminum alloys. The alloys were tested as T5 tempered (air-quenched directly on the press and artificially aged) after processing by the extrusion of semi-continuous cast and homogenized billets. The addition of small amounts of zirconium and manganese in the base AIMgSiO.7 alloy increased the strength, reaching 310 MPa of tensile strength and increased the corrosion rate by 15% in aqueous sodium chloride solution.

scholarly journals Mechanical and corrosion properties of 6061 aluminum alloys recycled by hot-extrusion of cutting chips

2003 ◽  
Vol 53 (11) ◽  
pp. 554-560 ◽  
Author(s):  
Kazutaka SUZUKI ◽  
Ichinori SHIGEMATSU ◽  
Yuan-bin XU ◽  
Tsunemichi IMAI ◽  
Naobumi SAITO
Keyword(s):  
Aluminum Alloys ◽  
Hot Extrusion ◽  
Corrosion Properties ◽  
Mechanical And Corrosion Properties

Forging of Articles out of Aluminum Alloys under Superplastic Conditions – Difficulties and Methods of their Overcoming

2012 ◽  
Vol 735 ◽  
pp. 284-288
Author(s):  
Vadim Trifonov
Keyword(s):  
Aluminum Alloys ◽  
Superplastic Deformation ◽  
Hot Forging ◽  
Grain Structure ◽  
Heat Processing ◽  
Corrosion Properties ◽  
Fine Grain ◽  
Mechanical And Corrosion Properties

The manuscript considers the possibility of using of superplastic deformation at hot forging of aluminum alloys. The analysis has been conducted concerning the use of different methods for imparting ultra-fine grain structure to aluminum alloys in terms of their workability. The deformation and heat processing for thermo-strengthened aluminum alloys has been proposed in which superplastic deformation is combined with hardening. The effect of such processing on mechanical and corrosion properties of aluminum alloys is shown. The model processing of a component is demonstrated at forging under superplasticity conditions often surpass the advantages obtained.

scholarly journals Bimodal Microstructure Obtained by Rapid Solidification to Improve the Mechanical and Corrosion Properties of Aluminum Alloys at Elevated Temperature

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 230
Author(s):  
Irena Paulin ◽  
Črtomir Donik ◽  
Peter Cvahte ◽  
Matjaž Godec
Keyword(s):  
Elevated Temperature ◽  
Aluminum Alloys ◽  
Melt Spinning ◽  
High Strength ◽  
Tensile Tests ◽  
Chemical Compositions ◽  
Corrosion Properties ◽  
Transmission Microscopy ◽  
Aa5083 Alloy ◽  
Mechanical And Corrosion Properties

The demand for aluminum alloys is increasing, as are the demands for higher strength, with the aim of using lighter products for a greener environment. To achieve high-strength, corrosion-resistant aluminum alloys, the melt is rapidly solidified using the melt-spinning technique to form ribbons, which are then plastically consolidated by extrusion at elevated temperature. Different chemical compositions, based on adding the transition-metal elements Mn and Fe, were employed to remain within the limits of the standard chemical composition of the AA5083 alloy. The samples were systematically studied using light microscopy, scanning electron, and transmission microscopy with electron diffraction spectrometry for the micro-chemical analyses. Tensile tests and Vickers microhardness were applied for mechanical analyses, and corrosion tests were performed in a comparison with the standard alloy. The tensile strength was improved by 65%, the yield strength by 45% and elongation by 14%. The mechanism by which we achieved the better mechanical and corrosion properties is explained.

Electrochemical Impedance Characteristics of Sintered 7075 Aluminum Alloy Under Ssrt Condition

2013 ◽  
Vol 58 (2) ◽  
pp. 505-508 ◽  
Author(s):  
S. Sunada ◽  
N. Nunomura
Keyword(s):  
Aluminum Alloys ◽  
Complex Shape ◽  
Electrochemical Impedance ◽  
Ingot Metallurgy ◽  
View Point ◽  
Corrosion Properties ◽  
Electrochemical Tests ◽  
Impedance Characteristics ◽  
Polarization Test ◽  
Conventional Ingot

Powder metallurgy (P/M) process has the advantage of better formability to fabricate complex shape products without machining and welding. And recently this P/M process has been applied to the production of aluminum alloys. The P/M aluminum alloys thus produced also have received considerable interest because of their fine and homogeneous structure. Many papers have been published on the mechanical properties of the aluminum alloys produced by P/M process while there have been few on their corrosion properties from the view point of electrochemistry. In this experiment, therefore, two kinds of 7075 aluminum alloys prepared by the conventional ingot metallurgy (I/M) process and P/M process were used, I/M material is commercially available. and their corrosion behavior were investigated through the electrochemical tests such as potentiodynamic polarization test, slow rate strain tensile (SSRT) test and electrochemical impedance spectroscopy (EIS) measurement under SSRT test in the corrosion solution and the deionized water.

On the defects of enamel coatings

2019 ◽  
pp. 145-150
Author(s):  
T. O. Soshina ◽  
V. R. Mukhamadyarovа
Keyword(s):  
Heat Treatment ◽  
Surface Tension ◽  
Electron Microscope ◽  
Enamel Coating ◽  
Surface Defects ◽  
Linear Expansion ◽  
Corrosion Properties ◽  
Treatment Conditions ◽  
Mechanical And Corrosion Properties ◽  
Coefficient Of Linear Expansion

The defects destroy the integrity of the enamel, and the paper examines the influence of the physical-mechanical and corrosion properties of frits and heat treatment on the defectiveness of the enamel coating. The surface defects were scanned by electron microscope. It has been established that the defectiveness of enamel coatings depends on the melting index, temperature coefficient of linear expansion, surface tension of the frits, and heat treatment conditions. When burning rate of the enamel coating decreases, the fine-meshed structure of the enamel changes, and the size of the defects decreases.

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