The effect of B elements and cooling rate on the microstructure and tensile properties of Al-7%Si-0.5% Mg alloy
Publish place: 4th Iran Aluminum International Conference IIAC2016
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IIAC04_067
تاریخ نمایه سازی: 22 دی 1396
Abstract:
This work carried out to investigate the effect of different amounts of B (0.01, 0.05, 0.1 and 0.5) and cooling rate on Al-7%Si-0.5%Mg alloy. The samples were examined by using optical microscopy (OM) and tensile testing to evaluate the modification efficiency of the alloy with different B contents. The optimum level B as Al–B grain refiners was found. Grain size and dendrite arm spacing decreased, due to increasing cooling rate and B grain refiner through reduced sections. Increasing cooling rate results in higher strength and B-refined specimens showed highest tensile strength and elongation values
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Authors
B Pourbahari
School of Metallurgy and Materials, College of Engineering, University of Tehran, P.O. Box ۱۴۳۹۵-۷۳۱, Tehran, Iran
M Emamy
School of Metallurgy and Materials, College of Engineering, University of Tehran, P.O. Box ۱۴۳۹۵-۷۳۱, Tehran, Iran
O Marjani
Department of Materials Engineering, Islamic Azad University, South Tehran Branch, Tehran, Iran
M Lotfpour
School of Metallurgy and Materials, College of Engineering, University of Tehran, P.O. Box ۱۴۳۹۵-۷۳۱, Tehran, Iran