An Al–0.5 wt% Cu alloy solidified unidirectionally with assuming that there is no diffusion in the solid and perfect mixing in the liquid, and the solidus and liquidus lines are straight. How much eutectic would form in the solidified bar?
An Al–0.5 wt% Cu alloy solidified unidirectionally with assuming that there is no diffusion in the...
An ingot of Al-5% Cu is directionally solidified. Assume that there is no diffusion in the solid and that there is perfect mixing in the liquid. Pure aluminum melts at 660°C. At the eutectic temperature of 548°C, the liquid composition is 33.2% Cu and the solid composition is 5.35% Cu. Assume that the liquidus and solidus are straight lines. Calculate the composition of the liquid when the solidification is 40% complete. **************use Scheil equation to solve************* What is the average...
Can someone help with this material science problem? Problem 10.38 (GO Tutorial) For a copper-silver alloy of composition 24 wt% Ag-76 wt% Cu and at 775°C (1425°F) (see Animated Figure 10: (a) Determine the mass fractions of a and β phases Mass fraction a Mass fraction β- (b) Determine the mass fractions of primary a and eutectic microconstituents do the following: Mass fraction a primary Mass fraction eutectic (c) Determine the mass fraction of eutectic a Mass fraction a eutectic|...
5. Part of the Al-Cu phase diagram is shown below. Consider an AI-33 wt% Cu alloy which has been solidified 800 700 660°C 600 548°C 02 3% 500 - 400 300 200 10 20 40 50 70 30 60 Al Wt % Cu a) What phases would be present after solidification and cooling to room temperature? b) What compositions would those phases have? c) Calculate the relative amounts of those phases d) Below is a micrograph for the solidified Al-33...
(a) Design, by stating the composition, a Cu-Ni alloy that will be completely solid at 1200°C (use Fig. 9.3a). (b) Design, by stating the composition, a Cu-Ni alloy that will exist at a completely molten state at 1300°C and becomes completely solid at 1200°C (use Fig. 9.3a). Composition (at% Ni) 40 60 10 20 80 100 2800 1500 Liquid 1453°C 2600 1400 Solidus line Temperature (°C) Liquidus line al Temperature (°F) 200 1100 1085C 1000 LT II 0 20 40...
2. A 50 wt% Ni-50 wt% Cu alloy is heated to a temperature within the a + liquid-phase region. If the composition of the a phase is 58 wt% Ni, determine: a) The temperature of the alloy b) The composition of the liquid phase c) The relative amount of each phase (weight fractions) T(°C) 1600 1500 L (liquid) 1400 1300 iquiduis Na solidus 1200 1100 (FCC solid solution) 1000 L 0 20 40 60 80 100 wt% Ni
A Cu-Ni alloy is slowly cooled to 1250°C. Both liquid and solid coexist. If the amount of liquid is 26%, determine the overall composition of the alloy (in wt% Ni). Composition (at% Ni) 0 20 40 1600 TTT 60 80 100 2800 1500 Liquid 1453°C 2600 1400 Liquidus line Solidus line Temperature (°C) 00 Temperature (°F) 1200 2200 1100 2000 1085°C 1000 LL 0 20 80 100 40 60 Composition (wt% Ni) (Cu) (Ni)
2. For the Cu-Ag phase diagram, answer the following. Label the figure and add is part of your answer sheet....... .........(11 points) a) What is the eutectic temperature and composition? (1 point) b) In the context of this diagram, what does the symbol B represent? (1 point) c) Assume slow cooling and that equilibrium conditions exist for the alloy for 70 wt% Ag - 30 wt% Cu. If this is being cooled from 1000 °C, when will the first solid...
For the Cu-Ag phase diagram, answer the following. Label the figure and add is part of your answer sheet........ ...(11 points) a) What is the eutectic temperature and composition? (1 point) b) In the context of this diagram, what does the symbol B represent? (1 point) c) Assume slow cooling and that equilibrium conditions exist for the alloy for 70 wt% Ag – 30 wt% Cu. If this is being cooled from 1000 °C, when will the first solid form...
6. Consider the Ti-Ni system in the figure below. Atomic Percent Nickel 20 I800 1600 L 1450C 1400 200 TIN (Ni) 1000 Un) re s00 Hati) s00 Ti Weight Percent Nickel N a. What are the melting temperatures of pure Ni and pure Ti? b. Label the liquidus and solidus lines in the figure. c. Label al field containing two phases in the figure. d. What is the maximum solubility of Ni in a-Ti and Ti in Ni? e. Write...
A copper-nickel alloy of composition (40% Ni-60% Cu) is slowly heated from a temperature of 1200°C: 1. a) At what temperature does the first liquid phase form? b) What is the composition of this liquid phase? c) At what temperature does complete melting of the alloy occur? d) What is the composition of the last solid remaining prior to complete melting? Composition (at% N) 100 0 1600 2800 1500 1453°C Liquid 2600 Soldus line Liquidus line 1300 - 2200 120아ㅡㅡㅡㅡㅡ...