شماره ركورد
6621
شماره راهنما(اين فيلد مربوط به كارشناس ميباشد لطفا آن را خالي بگذاريد)
6621
پديد آورنده
Mohammad Bahramifar
عنوان
Effect of Manganese and Magnesium on theMechanical Properties and Microstructure ofAl-Si-Mg-Mn
مقطع تحصيلي
كارشناسي ارشد
رشته تحصيلي
مواد
سال تحصيل
Spring 2004
تاريخ دفاع
Spring 2004
استاد راهنما
Dr. S. Shabestari
چكيده
ABSTRUCT
In this work, the effect of Mn and Mg on the mechanical properties and
microstructure of Al-Si-Mg-Mn Casting Alloys has been investigated. For this
purpose, Mn and Mg have been used in the range of 0 to 0.8 wt%. Liquid treatment
such as fluxing, degassing, modifying and grain refining have been carried out. Sand
molds has been designed and manufactured to produce tensile test specimens. Also,
Some specimens were heat -treated (T6).
The microstructures of the alloys have been studied by means of optical and
scanning electron microscopy (SEM). Mechanical properties of different alloys have
been investigated in both non heat-treated and heat-treated conditions. All
intermetallic compounds formed during solidification have been investigated by use
of SEM/EDS. It has been found that the best mechanical properties obtained in the
alloy having Al-9%Si-0.25%Mg-0.35%Mn.