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CANFIS Model to Predict the Properties of Aluminum Silicon Eutectic Alloy-Modified and Vibrated During Solidification


Affiliations
1 JNT University, Hyderabad, India
2 Hoseo University, Asan City, Korea, Republic of
3 Dept. of Automobile Engg., Hoseo University, Asan City, Korea, Republic of
     

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The effects of modification and vibration during solidification of Aluminum-Silicon eutectic alloy (LM6) are studied and compared with unmodified alloy. Sodium and Strontium are used as modifiers. Horizontal sinusoidal vibration at different frequencies was imposed using a vibration table. It was found that modification treatment improves properties such as ultimate tensile strength (UTS), percentage elongation, hardness, toughness, cutting force, electrical conductivity, thermal conductivity and optimum values were obtained at 1.5% by weight addition of modifier. Vibration imposed during solidification on the modified alloy further improved the properties at 15 Hz frequency of vibration. Neuro fuzzy model was developed to predict the properties at different percentages of modifiers and different frequencies of vibration. From the studies of sensitivity analysis, it was found that UTS is more sensitive to % modifier and thermal conductivity is more sensitive to frequency of vibration. Similar models were also developed to predict porosity and fatigue strength. The developed models are validated experimentally.
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  • CANFIS Model to Predict the Properties of Aluminum Silicon Eutectic Alloy-Modified and Vibrated During Solidification

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Authors

K. Srinivasulu Reddy
JNT University, Hyderabad, India
G. Ranga Janardhana
Hoseo University, Asan City, Korea, Republic of
Kim S. Kun
Dept. of Automobile Engg., Hoseo University, Asan City, Korea, Republic of

Abstract


The effects of modification and vibration during solidification of Aluminum-Silicon eutectic alloy (LM6) are studied and compared with unmodified alloy. Sodium and Strontium are used as modifiers. Horizontal sinusoidal vibration at different frequencies was imposed using a vibration table. It was found that modification treatment improves properties such as ultimate tensile strength (UTS), percentage elongation, hardness, toughness, cutting force, electrical conductivity, thermal conductivity and optimum values were obtained at 1.5% by weight addition of modifier. Vibration imposed during solidification on the modified alloy further improved the properties at 15 Hz frequency of vibration. Neuro fuzzy model was developed to predict the properties at different percentages of modifiers and different frequencies of vibration. From the studies of sensitivity analysis, it was found that UTS is more sensitive to % modifier and thermal conductivity is more sensitive to frequency of vibration. Similar models were also developed to predict porosity and fatigue strength. The developed models are validated experimentally.