scholarly journals Effect of artificial aging on hardness and intergranular corrosion of 6063 Al alloy

2017 ◽  
Vol 23 (4) ◽  
pp. 395-398 ◽  
Author(s):  
Behiye Yüksel
Keyword(s):  
Intergranular Corrosion ◽  
Artificial Aging ◽  
Al Alloy ◽  
6063 Al Alloy

Effect of Artificial Aging on Intergranular Corrosion of 6063 Al Alloy

2013 ◽  
Vol 842 ◽  
pp. 275-278 ◽  
Author(s):  
Jian Ming Wang ◽  
Xiao Dan Meng ◽  
Ying Ying Bai ◽  
Guo Feng Ma ◽  
Yan Liu ◽  
...  
Keyword(s):  
Intergranular Corrosion ◽  
Corrosion Test ◽  
Artificial Aging ◽  
Al Alloy ◽  
Corrosion Properties ◽  
Corrosion Morphology ◽  
Accelerated Corrosion ◽  
Surface Corrosion ◽  
6063 Al Alloy ◽  
Accelerated Corrosion Test

The effect of artificial aging on the corrosion properties of 6063 Al alloy was investigated by optical microscope, field emission scanning electron microscope and accelerated corrosion test. Accelerated corrosion test revealed that the alloy was susceptible to intergranular corrosion (IGC) in the artificial aged conditions according to the surface corrosion morphology, and the IGC resistance was reduced as the aging time was prolonged, resulting from more Mg2Si grain boundary precipitates formed. However, the corroded cross-sections showed that the IGC was very local. Additionally, the surface corrosion morphology also showed that pitting corrosion took place, resulting from galvanic corrosion between (FeMn)3Si12Al15 particles and matrix Al.

Hardness and Corrosion Behavior of Aged 6063 Al Alloy

2014 ◽  
Vol 1046 ◽  
pp. 54-57 ◽  
Author(s):  
Chun Lin He ◽  
Xiao Dan Meng ◽  
Guo Feng Ma ◽  
Jian Ming Wang ◽  
Zhao Fu Du ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Intergranular Corrosion ◽  
Corrosion Test ◽  
Artificial Aging ◽  
Galvanic Corrosion ◽  
Peak Hardness ◽  
Al Alloy ◽  
Accelerated Corrosion ◽  
6063 Al Alloy ◽  
Accelerated Corrosion Test

The effect of artificial aging on the corrosion properties of 6063 Al alloy was investigated by optical microscope, field emission scanning electron microscope (FE-SEM) and accelerated corrosion test. Accelerated corrosion test revealed that the corrosion resistance of the alloy strongly depended on artificial aging times, and the corrosion weight gain curve of the aged alloy was greatly in agreement with that of hardness vs. aging times, showing that the lowest corrosion resistance was exhibited at peak aged condition. It is found that pitting is the main corrosion form for the 6063 aluminum alloy aged with different times at 210°C, and slight intergranular corrosion is also found at peak hardness. It is believed that pitting results from galvanic corrosion between Al9Fe2Si2 particles and matrix Al while intergranular corrosion results from galvanic corrosion between Mg2Si and matrix Al.

Effect of Artificial Aging on Salt Spray Corrosion Resistance of 2024 Al Alloy

2014 ◽  
Vol 1046 ◽  
pp. 50-53
Author(s):  
Chun Lin He ◽  
Yan Liang ◽  
Ying Ying Bai ◽  
Guo Feng Ma ◽  
Jian Ming Wang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Weight Gain ◽  
Intergranular Corrosion ◽  
Corrosion Test ◽  
Artificial Aging ◽  
Salt Spray ◽  
Aged Alloy ◽  
Al Alloy ◽  
Accelerated Corrosion ◽  
Accelerated Corrosion Test

The effect of artificial aging on the corrosion resistance of 2024 Al alloy was investigated by field emission scanning electron microscope (FE-SEM) and accelerated corrosion test. For comparison, the solution treatment followed by air-cooled and water-quenched samples were also researched. Accelerated corrosion test revealed that the corrosion resistance of the alloy strongly depended on artificial aging times, and the weight gain of the aged alloy increased first and then decreased with increasing the aging times, and a maximum value was found at peak aged condition. The air-cooled sample had the highest weight gain while the water-quenched one had the lowest weight gain among all the samples. The corrosion morphologies showed that pitting and localized intergranular corrosion were the main corrosion forms for the air-cooled and aged 2024 Al alloys. However, only pitting corrosion took place on the water-quenched samples. The pitting and intergranular corrosion resulted from galvanic corrosion between secondary particles and matrix Al, and between grain boundary precipitates and matrix Al, respectively.

Effect of aging on mechanical properties of 6063 Al-alloy using instrumented ball indentation technique

2010 ◽  
Vol 527 (6) ◽  
pp. 1590-1594 ◽  
Author(s):  
G. Das ◽  
Mousumi Das ◽  
Sabita Ghosh ◽  
Paritosh Dubey ◽  
A.K. Ray
Keyword(s):  
Mechanical Properties ◽  
Al Alloy ◽  
Indentation Technique ◽  
Ball Indentation ◽  
6063 Al Alloy

Effect of Zr on Structure and Resistance to Intergranular Corrosion of Severely Deformed 2024 Aluminum Alloy

2019 ◽  
Vol 31 ◽  
pp. 35-42
Author(s):  
Stanislav Krymskiy ◽  
Rafis Ilyasov ◽  
Elena Avtokratova ◽  
Oleg Sitdikov ◽  
Anastasia Khazgalieva ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Aluminum Alloy ◽  
Severe Plastic Deformation ◽  
Intergranular Corrosion ◽  
Artificial Aging ◽  
Volume Fraction ◽  
S Phase ◽  
2024 Aluminum Alloy ◽  
Excess Phases ◽  
Electrochemical Potentials

Effects of severe plastic deformation by isothermal сryorolling with a strain of e~2 and subsequent natural and artificial aging on the structure and resistance to intergranular corrosion (IGC) of the preliminary quenched 2024 aluminum alloy of standard and Zr modified compositions were investigated. Increasing the temperature of aging leads to decreasing the alloy IGC resistance due to precipitation of more stable strengthening S-phase (Al2CuMg), rising difference of electrochemical potentials at grain and subgrain boundaries. Zr additions, оn the opposite, significantly increased the alloy IGC resistance in both naturally and artificially aged conditions, reducing its depth and intensity. The main structural factor, influencing the alloy corrosion behavior, is excess phases: their composition, volume fraction and distribution.

scholarly journals Microstructure Observation of Weld Interface between 6063 Al alloy and S45C Carbon Steel by Means of Friction Stirring

2007 ◽  
Vol 25 (3) ◽  
pp. 426-430 ◽  
Author(s):  
Toshiaki YASUI ◽  
Yoichiro SHIMODA ◽  
Takayuki ISHII ◽  
Masami TSUBAKI ◽  
Masahiro FUKUMOTO
Keyword(s):  
Carbon Steel ◽  
Weld Interface ◽  
Al Alloy ◽  
Microstructure Observation ◽  
6063 Al Alloy

Effects of Heat Dissipation from Friction Stir Welding to Microstructures of Semi-Solid Cast 6063 Al Alloy

2021 ◽  
Vol 904 ◽  
pp. 70-75
Author(s):  
Chaiyoot Meengam ◽  
Kittima Sillapasa ◽  
Yotsakorn Pratumwal ◽  
Somboon Otarawanna
Keyword(s):  
Friction Stir Welding ◽  
Heat Dissipation ◽  
Maximum Temperature ◽  
Al Alloy ◽  
Element Analysis ◽  
Friction Stir ◽  
Tool Shoulder ◽  
Measurement Results ◽  
6063 Al Alloy ◽  
Semi Solid

In this work, temperature distribution in semi-solid cast 6063 aluminum alloy workpieces during friction stir welding (FSW) was determined by finite element analysis (FEA). The FEA results were validated by comparing them with the measurement results from thermocouples. The maximum temperature of 534.2oC was predicted at the workpiece surface contacted with the tool shoulder. The temperature profiles obtained from FEA were used to explain microstructural changes during FSW. It was observed that relatively high temperature made α-Al grains became elongated and Mg2Si intermatalics turned into a rod-like morphology with round edges.

Deformation Behavior of 6063 Al Alloy Deformed by Shear-Drawing Method

2011 ◽  
Vol 49 (4) ◽  
pp. 291-297 ◽  
Author(s):  
Dong Hyuk Shin ◽  
Young Gun Ko ◽  
Byung Uk Lee
Keyword(s):  
Deformation Behavior ◽  
Al Alloy ◽  
6063 Al Alloy ◽  
Drawing Method

Effect of Technological Parameters on Corrosion Resistance of Phytic Acid Coatings on 6063-Al Alloy

2011 ◽  
Vol 105-107 ◽  
pp. 1634-1637
Author(s):  
Bi Lan Lin ◽  
Yu Ye Xu ◽  
Zhi Chuan Yuan
Keyword(s):  
Corrosion Resistance ◽  
Phytic Acid ◽  
Acid Concentration ◽  
Corrosion Current ◽  
Coated Sample ◽  
Al Alloy ◽  
Technological Parameters ◽  
Tafel Polarization ◽  
Polarization Technique ◽  
6063 Al Alloy

Phytic acid coatings were formed on 6063-Al alloy during immersion in phytic acid solution with various pH and phytic acid concentration for different time. The corrosion resistance of the coated samples was investigated using Tafel polarization technique. The results show that the effect of technological parameters on corrosion resistance of phytic acid coatings is great. With the increase of pH, the corrosion resistance of the coated sample is firstly increased and latterly decreased; it is optimum when pH was 3.0. The corrosion resistance of phytic acid coatings is increased largely with phytic acid concentration and immersion time. The anodic and cathodic corrosion processes of the coated 6063-Al alloy are inhibited markedly, and the corrosion current density is decreased for more than two orders of magnitude.

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