Figure 3.20 Portion of equilibrium phase diagram showing alloy composition X and associated solvus temperature Tș. - solvus line Ts a+ B х Composition

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Compute the volume percent of graphite VGr in a 3.3 wt% C cast iron, assuming that all the carbon exists as the graphite phase. Assume densities of 7.9 and 2.3 g/cm3 for ferrite and graphite, respectively. a. what is the weight fraction Wa? b. what is the weight fraction of graphite? c.what is the volume fraction of graphite?

Using the isothermal transformation curve for a Eutectoid steel, determine the final structure of alloy for the following cooling processes

Q6/ A. Show how the precipitation heat treatment of precipitation hardenable alloys differs from dispersion hardening process of composite material. B. What are the main constitutes of composite materials and what are the roles of each constitute?

According to the following graph, two samples of 1080 steel are cooled from the eutectoid temperature, one at a cooling rate of 250°C/s and the other at a cooling rate of 7.27x10-8 °C/s. Specify the phases obtained and explain their formation from thermodynamic and kinetic perspectives. Also, briefly describe their formation. Draw the microstructure of the phases obtained. Sıcaklık (C) 800 700 600 500 400 300 200 100 0 10 1 T M(başlama) M(% 50) M(% 90) 10 M+O -Otektoid Sıcaklık 10² Zaman (s) % 50 10³ 104 105

Referring to Figure 1, please answer the following [NOTE: SHOW YOUR WORK on Figure 1]:a. provide the specific name for the phase boundary lines denoted by A and B. b. identify the phases present at equilibrium in the phase fields denoted by C, D, and E. c. identify the specific name for the point denoted by F. d. What is the maximum solid solubility of Mg in Al? At what temperature does it occur? e. An Al-Mg alloy (10 wt% Mg, 90 wt% Al) is heated slowly (to insure equilibrium) from a temperature of 200 C:    i. At what temperature does the first liquid phase form?    ii. What is the composition of the liquid phase at the temperature in part i.?  iii. At what temperature does complete melting (no solid phase remaining) occur?  iv. What is the composition of the last solid remaining prior to complete melting? f. Using the equilibrium phase diagram of Figure 1, identify the phases present, their compositions, and their relative mass fractions at equilibrium for a 70 wt% Mg – 30 wt% Al…

Given the equilibrium phase diagram (a) below, briefly describe the mechanisms of precipitation hardening/strengthening of an aluminium alloy making reference to the transitions shown in (b) below to X, X to A, X to D, A to B and A to C. а +0 D B Time (a) (b) - anedua Temperature

Please show all your work no ai. I'm trying to truly understand.