3- The limited solid solubility Binary phase diagram has many types of reactions like 4- the Crystal Structure of y (Austenite) is ... (12-1324) at 2.14 wt% has-FCC. 5- The maximum solubility of carbon in austenite, 2 occurs at 1147° C while the maximum solubility wt% 0.022 W+% of BCC is .......... At 727 oC
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- BINARY PHASE DIAGRAMS Please only answer parts d and e as the rest have been solved. Show full detailed explanation to answers with diagrams if necessary a)(i) What is the melting point of pure Mg?(ii) What is the maximum solubility of Mg in Pb and at what temperaturedoes this occur? (b) A 50 wt.% Pb-50wt% Mg alloy is slowly cooled from 700 °C to 400 °C.(i) At what temperature does the first solid phase form?(ii) What is the composition of this solid phase?(iii) At what temperature does all the liquid solidify?(iv) What is the composition of the last remaining liquid phase?(v) What is the freezing range? (c) What is the mass fraction of solid and liquid of a 60 wt.% Mg alloy at atemperature of 500 °C.(d) Draw and label the microstructure of an 80 wt.% Mg alloy at 600 °C.(e) A Mg-Pb alloy of mass 5.5 kg has a composition just slightly below thesolubility limit of 200 °C.(i) What mass of lead is in the alloy?(ii) If the alloy is heated to 350 °C how much more lead can be dissolvedin…a-Arrange in a table the number of phases that can be observed at R.T in the range starting from zero to 6.67%C in an "Equilibrium Phase Diagram" and the corresponding three of the mechanical properties.b- Explain with examples the solid-solution, eutectic and peritectic observed phases.c- Draw the .microstructure of each phase1-The microstructural design of Iron-Carbon(Fe-C) alloys has led to the development of vast range of steels for structural material applications. The phase diagram provide means for producing specific microstructures. Using the phase diagram below to answer the following questions A – If the liquid mixture of Fe-3%Wt C is slowly cooled from 1600 C to 1200C indicate the phase(S) that are present at 1200 C . Also calculate the composition of the of phases.(10) B-Describe the sequence of all phase transformation that accour from Fe-1.5%wt C is slowly cooled from 1600 C to 400 C. Use the diagram below to to describe the microstructures for each phase transformation (10)
- Use the phase diagrams for Cu-Ni and Cu-Ag systems below to answer the question: Based on the mechanism, would you expect a solution containing 80 wt% Cu to be stronger if the remaining 20% of the alloy was Ni or Ag? Briefly explainWhat is a peritectic phase diagram? Draw a typical equilibrium diagram for a eutectic type of system with limited solid solubility and explain its important features.For a steel with a 0.2 wt%C, what is the mass fraction and composition of phases at 600 (Please draw connections on the graph)
- Consider the magnesium oxide-aluminum oxide phase diagram; ss indicates a solid solution. The radii of Mg2 + and Al3 + are 0.072 and 0.053 nm, respectively. (a) There are two eutectic reactions on the diagram; describe them (temperatures, compositions and phases). (b) Spinel, at temperatures below 1000 °C, is a compound with a composition of 50 mol% Al2O3-50 mol% MgO. For higher temperatures, spinel is stable for a range of compositions. What is the temperature of the congruent fusion? (c) What are the main reasons for the low solubility of Al2O3 in MgO below 1400 °C? (d) Maximum non-stoichiometry on the Al2O3-rich side, in the spinel phase field, occurs approximately 2000 °C and corresponds to approximately 82 mol% (92% w) of Al2O3. Determine the type of gaps defect that is produced and the percentage of gaps that exists in this composition.What is the maximum amount of Pb (in %) with which Sn may be alloyed to render a single β phase at 183°C. Looking at the Binary Phase DiagramQuestion: Construct the hypothetical phase diagram for metals A and B between room temperature (20°C) and 700°C given the following information: The melting temperature of metal A is 480°C. The maximum solubility of B in A is 4 wt% B, which occurs at 420°C. The solubility of B in A at room temperature is 0 wt% B. One eutectic occurs at 420°C and 18 wt% B–82 wt% A. A second eutectic occurs at 475°C and 42 wt% B–58 wt% A. The intermetallic compound AB exists at a composition of 30 wt% B–70 wt% A, and melts congruently at 525°C. The melting temperature of metal B is 600°C. The maximum solubility of A in B is 13 wt% A, which occurs at 475°C. ● The solubility of A in B at room temperature is 3 wt% A.
- Draw the iron-Fe3C phase diagram. Consider 0.4 and 1.1 wt% C steel alloy. It is cooled slowly from a temperature within austenite phase to room temperature. Show a) microstructure at 1000 °C b) microstructure at 730°C c) microstructure at 715°C and d) microstructure at room temperature e) determine the phase present, the phase compositions at 715 and 730 °C f) What do you say about mechanical properties of these alloys, depending on their microstructure at room temperature?Compare the Cu-Ni binary phase diagram with the Al2O3-Cr2O3 binary phase diagram. Why are they so similar? HINT: Review the Hume-Rothery rules.Consider the binary eutectic copper-silver phase diagram shown below. Make phase analysis of a 80 wt % Ag–20 wt% Cu alloy at the temperatures (a) 900°C, and (b) 780°C-ΔT. In the phase analysis include: (I) phases present, (ii) chemical compositions of phases, (iii) mass fractions of phases, and (iv) sketch of microstructure.