An alloy composed of 25 wt.% B just below eutectic, the phase fraction of primary alpha...

 

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An alloy composed of 25 wt.% B just below eutectic, the phase fraction of primary alpha is 0.75 and the rest is eutectic microconstituent (a+ß). On the other hand, at the same temperature, an alloy having 50 wt. % B eutectic microconstituent's fraction is 0.60 and total alpha's phase fraction is 0.5. If both alloys are hypoeutectic, what is the eutectic composition? What is the maximum solubility of A in B and B ina? A melts at 1000 °C and B melts at 700 °C. Eutectic temperature is 500 °C. (15 points) 5. For the alloy system mentioned above calculate phase fractions and phase compositions of all existing phases for the gross composition 82 wt.% right below eutectic? (10 points) An alloy composed of 25 wt.% B just below eutectic, the phase fraction of primary alpha is 0.75 and the rest is eutectic microconstituent (a+ß). On the other hand, at the same temperature, an alloy having 50 wt. % B eutectic microconstituent's fraction is 0.60 and total alpha's phase fraction is 0.5. If both alloys are hypoeutectic, what is the eutectic composition? What is the maximum solubility of A in B and B ina? A melts at 1000 °C and B melts at 700 °C. Eutectic temperature is 500 °C. (15 points) 5. For the alloy system mentioned above calculate phase fractions and phase compositions of all existing phases for the gross composition 82 wt.% right below eutectic? (10 points)