Effect of mold oscillation on the metallurgical characterization and mechanical properties of A319 aluminum alloy casting

2017 ◽  
Vol 31 (1) ◽  
pp. 1-6
Author(s):  
Sakendra Kumar ◽  
S. P. Tewari
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Aluminum Alloy Casting ◽  
Alloy Casting ◽  
Mold Oscillation ◽  
Metallurgical Characterization

The Effect of Fe Addition on Microstructure, Mechanical Properties and Electric Conductivity of the As-Cast Al–Mg–Si Alloys

2021 ◽  
Vol 21 (3) ◽  
pp. 1915-1919
Author(s):  
Cheol-Woo Kim ◽  
Hyo-Sang Yoo ◽  
Jae-Yeol Jeon ◽  
Jae-Ik Cho ◽  
Sung-Kil Hong
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
High Strength ◽  
Aluminum Alloy Casting ◽  
Alloy Casting ◽  
The Poor ◽  
Fe Content ◽  
Alloy Castings ◽  
Al Matrix ◽  
Fe Addition

Fe is considered as one of the most harmful trace elements among impurities in aluminum and its alloys due to its influence of the mechanical properties especially in elongation. It is therefore essential that the Fe content is controlled to improve quality and the toughness of aluminum alloy castings. Since demand for high strength aluminum alloy casting was significantly increased in electro materials and devices, automotive and airplane industries, it is necessary to characterize the effect of Fe and set the tolerable amount of Fe content in aluminum alloys. Al6061 alloys were prepared with compositions of 0.36, 0.45, 0.58, 0.65, 0.75, 0.81 and 0.91 wt.% Fe. Solidification characteristics were analyzed by CALPHAD (Pandat software) method. Mechanical properties such as hardness, tensile strength, elongation and fatigue strength were evaluated and compared with different Fe contents. Al13Fe4 phase increased with increasing as Fe content, however, other phases, α-AlFeSi and Mg2Si, showder a slight decrease. The higher the Fe content, the lower the electrical conductivity of the alloy due to the severe distortion of the Al matrix. As Fe content was more than specification of Al6061 alloy, 0.7 wt.%, the mechanical properties, especially, hardness and elongation were greatly influenced. The hardness is attributed to the poor densification and angular-shaped Al13Fe4 phases unevenly distributed in the α-Al matrix.

Improvement of 319 aluminum alloy casting durability by high temperature solution treatment

2001 ◽  
Vol 109 (1-2) ◽  
pp. 174-180 ◽  
Author(s):  
Jerry H Sokolowski ◽  
Mile B Djurdjevic ◽  
Christopher A Kierkus ◽  
Derek O Northwood
Keyword(s):  
Aluminum Alloy ◽  
High Temperature ◽  
Solution Treatment ◽  
High Temperature Solution ◽  
Aluminum Alloy Casting ◽  
Alloy Casting ◽  
Temperature Solution

Solidification and Microstructure Simulation of A356 Aluminum Alloy Casting

2021 ◽  
Vol 1033 ◽  
pp. 18-23
Author(s):  
Li Tong He ◽  
Yi Dan Zeng ◽  
Jin Zhang
Keyword(s):  
Aluminum Alloy ◽  
Solidification Process ◽  
Casting Process ◽  
Uniform Structure ◽  
A356 Aluminum Alloy ◽  
Aluminum Alloy Casting ◽  
Alloy Casting ◽  
Shrinkage Defects ◽  
A356 Aluminum ◽  
Filling And Solidification

To obtain an A356 aluminum alloy casting with a uniform structure and no internal shrinkage defects, ProCAST software is used to set different filling and solidification process parameters for an A356 aluminum alloy casting with large wall thickness differences, And multiple simulations are conducted to obtain optimized casting process; then, based on the process, the microstructure of the thickest and thinnest part of the casting are simulated. The size, morphology, and distribution of the simulated microstructure of the thinnest part and the thickest part of the casting are very similar. The simulated microstructure is similar to that of the actual casting. This shows that castings with uniform structure and no internal shrinkage defects can be obtained through the optimized casting process .

Numerical Simulation Analysis of Aluminium Alloy Wheels Casting Defects and Casting Process Optimization

2013 ◽  
Vol 749 ◽  
pp. 125-132 ◽  
Author(s):  
Lv Ming Yang ◽  
Li Li Zhao ◽  
Qing Qing Zhang ◽  
Tie Tao Zhou
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Aluminum Alloy ◽  
Casting Process ◽  
Shrinkage Cavity ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Casting Defects ◽  
Pressure Casting ◽  
Aluminum Alloy Casting

In the low pressure casting process of A356 aluminum alloy wheel hub, casting defects including shrinkage cavity, shrinkage porosity, impurity and pore usually occur inside the casting. These defects affect the mechanical properties of the casting. To solve this problem, we conducted a study based on a cooperation project with a well-known domestic automobile wheel manufacturer. In the present study, uniaxial tensile test of aluminum alloy casting containing defects was simulated and analysed, and the effect of types and number of defects on mechanical properties was studied by finite element analysis software. Statistical analysis of the data was provided by the manufacturer. It has been found that the degassing technology is effective by the quantitative analysis method. Based on the analyses of experimental data and the numerical simulation it is deduced that the tensile strength of casting increases with the increase of the defects due to the presence of impurity. This was confirmed in this research project, it has been observed that the defect rate of the casting sample is reduced from 5%-6% to less than 1%.

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