Semisolid joining of aluminum A356 alloy by partial remelting and mechanical stirring

2010 ◽  
Vol 20 (9) ◽  
pp. 1792-1798 ◽  
Author(s):  
S.M.J. ALVANI ◽  
H. AASHURI ◽  
A. KOKABI ◽  
R. BEYGI
Keyword(s):  
A356 Alloy ◽  
Mechanical Stirring ◽  
Partial Remelting ◽  
Aluminum A356 Alloy

scholarly journals Finite Element Analysis of Damping Properties of High Strength Aluminum A356 Alloy Composite

2019 ◽  
Vol 8 (12S2) ◽  
pp. 298-300
Keyword(s):  
Silicon Content ◽  
A356 Alloy ◽  
High Strength ◽  
Mode Shapes ◽  
Damping Properties ◽  
High Quality ◽  
Element Analysis ◽  
Present Evaluation ◽  
Aluminum A356 Alloy ◽  
Numerical Examination

Aluminum composites are in reality notably used as a piece of various programs due to their tremendous load to quality homes. Many studies works had been finished to ponder and improve the mechanical houses of aluminum mixes. The formation of alloying segments anticipate a fundamental component in choosing the properties of a mix. The eventual results of numerical systems have been recognized via and massive as they eagerly facilitate with the check comes to fruition. In the present evaluation a numerical examination contraption i.E., restrained section examination (FEA) is used. The paintings presented in this paper is away for the examination of effect of vibration traits of aluminum blends of various sport plans. The displaying and evaluation is finished the usage of ANSYS programming. A secluded assessment is carried out to recognize the vibration direct i.E., trademark repeat and mode shapes, of the cloth considered. The mode shapes and fashionable Recurrence receive a essential part within the framework Of dynamic machines. The consonant evaluation has been made to choose repeat traits. The examination software scrutinizes the information from the records archive shapes the information and makes the yield document containing the nodal migrations and nodal stretch estimations of various nerves. From the examination it's miles assumed that as the copper and silicon content material within the amalgams grows winding decreases then again. ANSYS comes about insist the smallest Modulus twisting and a definitive tractable strengthincaseofthe380 mixes of 380 additions with the extension in copper and silicon content. Subsequently Al 380 amalgams show high-quality fine with least vibration.

Degassing of molten aluminum A356 alloy using ultrasonic vibration

2004 ◽  
Vol 58 (29) ◽  
pp. 3669-3673 ◽  
Author(s):  
Hanbing Xu ◽  
Xiaogang Jian ◽  
Thomas T. Meek ◽  
Qingyou Han
Keyword(s):  
Ultrasonic Vibration ◽  
Molten Aluminum ◽  
A356 Alloy ◽  
Aluminum A356 Alloy

Effect of power ultrasound on solidification of aluminum A356 alloy

2005 ◽  
Vol 59 (2-3) ◽  
pp. 190-193 ◽  
Author(s):  
X. Jian ◽  
H. Xu ◽  
T.T. Meek ◽  
Q. Han
Keyword(s):  
A356 Alloy ◽  
Power Ultrasound ◽  
Aluminum A356 Alloy

Microstructural Investigation of Semisolid Aluminum A356 Alloy Prepared by the Combination of Electromagnetic Stirring and Gas Induction

2019 ◽  
Vol 285 ◽  
pp. 290-295
Author(s):  
Nora Nafari ◽  
Farnoush Yekani ◽  
Hossein Aashuri
Keyword(s):  
Aspect Ratio ◽  
Shape Factor ◽  
A356 Alloy ◽  
Average Diameter ◽  
Electromagnetic Stirring ◽  
Microstructural Investigation ◽  
Porous Graphite ◽  
Three Phase ◽  
Semi Solid ◽  
Aluminum A356 Alloy

A three phase electromagnetic stirrer was used to agitate aluminum A356 slurry and a dry and oxygen free argon gas was introduced in to the slurry by a porous graphite core at a same time. The prepared semi-solid slurry was then transferred into a metallic mold and was compacted by a drop weight. Results demonstrated a favorable increase in shape factor, decrease in aspect ratio and average diameter size at different intensities of stirring. The intensity of stirring was changed by altering the current passed through the magnetic coil and also bubbling intensity via the porous graphite diffuser. Different time intervals for electromagnetic stirring and gas induction were applied. Agitating the slurry for 90 Sec. separately by electromagnetic stirrer and GISS method, gave better results in terms of shape factor, decrease in average diameter of the globules and aspect ratio.

Semi-Solid Processing of Nano-SiCP/ Al-Si Composites and Mechanical Properties with Rheo-Casting

2019 ◽  
Vol 285 ◽  
pp. 33-38
Author(s):  
Shu Sen Wu ◽  
Du Yuan ◽  
Qiang Chen ◽  
Shu Lin Lü ◽  
Zhi Wei Huang
Keyword(s):  
A356 Alloy ◽  
Average Diameter ◽  
Sem Analysis ◽  
Nano Particles ◽  
Mechanical Stirring ◽  
Sic Particles ◽  
New Process ◽  
The Matrix ◽  
A356 Aluminum ◽  
Semi Solid

Generally nano-SiC particles are difficult to be added into molten aluminum metals because of poor wettability. Nano-SiC particles reinforced A356 aluminum alloy composites were prepared by a new process, i.e., a molten-metal process combined with mechanical stirring at semi-solid state and ultrasonic vibration method. The nano particles were β-SiCp with an average diameter of 40 nm, and pre-oxidized at about 850°C to form an oxide layer with thickness of approximately 3.6 nm. The SEM analysis results show that nano-SiC particles are dispersed well in the matrix and no serious agglomeration is observed. The tensile strength and elongation of the 2wt.% nano-SiCp/A356 composite in as-cast state are 259 MPa and 5.3%, and they are improved by 20% and 15% respectively compared with those of the A356 alloy.

Effect of Mechanical Stirring on Microstructural Morphology in Semisolid A356 Alloy

2011 ◽  
Vol 328-330 ◽  
pp. 1149-1152
Author(s):  
Zheng Liu ◽  
Xiao Mei Liu ◽  
Wei Min Mao
Keyword(s):  
Liquidus Temperature ◽  
Volume Fraction ◽  
Solid Volume Fraction ◽  
A356 Alloy ◽  
Shearing Force ◽  
Mechanical Stirring ◽  
Stirring Time ◽  
Microstructural Morphology ◽  
Melt Cooling

The evolution of microstructural morphology in semisolid A356 alloy was researched under the mechanical stirring. The results showed that there was the effect of the stirring time on the microstructural morphology of semisolid A356 alloy, in which the microstructural morphology became better with the stirring time prolonging. There was also the effect of the stirring process on the microstructural morphology, in which the microstructural morphology obtained from the melt cooling to the reset solid volume fraction to start stirring was coarser than that obtained from the stirring above the liquidus temperature, but the microstructural morphology rapidly changes under the shearing force.

Study on the Reinforcement of Aluminum Alloy A356 Using SiC Particles by Mechanical Stirring

2011 ◽  
Vol 399-401 ◽  
pp. 368-371
Author(s):  
Hong Xia Gao ◽  
Yu Hui Zhang ◽  
Jian Xiu Liu ◽  
Gai Yun Yang
Keyword(s):  
Mechanical Property ◽  
Volume Fraction ◽  
A356 Alloy ◽  
Matrix Composites ◽  
Alloy Matrix ◽  
Mechanical Stirring ◽  
Sic Particles ◽  
Size Of Particles ◽  
Particle Addition ◽  
Sic Particle

This paper is to research the manufacturing process of A356 alloy matrix composites reinforced by SiC particles by mechanical stirring and how the size of particles ,volume fraction affect mechanical property has been studied , too. The text results revealed that larger particles especially particle size larger than 30um were suitable using this technique, meanwhile, it will hard to adding particles into the alloy when particle lower than 20um size. The effects of SiC particle addition on the hardness properties of A356 alloy and with higher volume fraction particles lead to greater hardness.

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