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Question: figure q2a shows the equilibrium phase diagram of aluminium and...

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Figure Q2-A shows the equilibrium phase diagram of aluminium and copper metals at different compositions and temperatures. Show on the diagram the followings 1. the temperature at which the microstructure of the alloy starts forming 75 pph eutectic the temperature in which dendrites start forming for the 20 % Cu alloy the range of Cu % (copper percentage) in which the alloy consists of 30 pph Al and 70 pph eutectic (Al + CuAl2) at room temperature the Cu % in which the alloy contains 100 pph compound CuAl at room temperature the range of temperature in which the alloy is 100 pph Al when 5 % Cu is added to the Al. 2, 3, 4, 5, [30 Marks] Answer of O 2-A Liquid, 600(A)+ L+CuAl a 500 Al-rich solid (Al) Compound CuAl2 400 (Al)+ Cu 200 100 10 20 0 Al 30 40 wt%Cu 70 Figure Q 2-A equilibrium phase diagram of Aluminium alloy with copper

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