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Consider a Pb-10% Sn alloy. During solidification, determine: (a) The composition of the first so...
Materials science Consider the graph below for a Pb-35% Sn alloy. Is the alloy hypoeutectic or hypereutectic: The allo...
Materials science
Consider the graph below for a Pb-35% Sn alloy. Is the alloy hypoeutectic or hypereutectic: The alloy is -select 400 300 Liquidus Solidus Liquidus Solidus α+L 200 -B 19 183 61.9 97.5 Solvus - Solvus 100 + Pb 40 20 60 80 Sn Weight percent tin Enter your answers below with whole numbers. The composition of the first solid to form, Cf, during solidification C % Sn The amounts (%a, %2) and compositions (Ca, C2) of each phase...
1. Below is the phase diagram of Pb-Sn alloy. (a) Describe what happens to a 20%-Pb 80%-Sn alloy as temperature decreas...
1. Below is the phase diagram of Pb-Sn alloy. (a) Describe what happens to a 20%-Pb 80%-Sn alloy as temperature decreases from 300 °C to 50 °C; use sketches as needed. (b) When temperature is kept constant at 200 °C, describe what happens as the Sn concentration is increased from 10 wt% to 90 wt%; use sketches as needed. 100% Liquid Procutectic α 24% Eutectic α Liquid 76% Eutectic β Alloy I Alloy 2 Liquid 49% 327 Liquidus 300 Liquid...
Based on the diagram below, what would be the weight percent of the solid at point N? (Give your answer in %, so if you...
Based on the diagram below, what would be the weight percent of the solid at point N? (Give your answer in %, so if you calculate 0.10 or 10%, enter as 10) 400 L A LIQUID M 300 LIQUIDUS LIQUIDUS L+B a+L SOLIDUS DHSOLIDUS 97.5% B 200 C SOLIDUS 183°C 19.2% 61.9% 100 R* R R 100 Pure Sn 80 60 40 20 Pure Pb Composition in wt.% Sn Temperature (Do OOLVUS SOLVUS
Based on the diagram below, what would...
For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and slowly cooling...
For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and slowly cooling down to room temperature. A Eutectic phase diagram of lead-tin alloy is shown in figure 3. What are the expected phases at 250°C, 150°C and at room temperature and estimate approximate phase fractions at these temperatures. Schematically draw the microstructures that would form at 250°C, 150°C and at room temperature. For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and...
(12 Question 2: points: 4 pts each) For a Lead-Tin (Pb-Sn) alloy of composition 85 wt%...
(12 Question 2: points: 4 pts each) For a Lead-Tin (Pb-Sn) alloy of composition 85 wt% Sn - 15 wt % Pb and at 182 °C determine the followings: Show your calculation details in your answer and draw lines on the phase diagram to label the phases and compositions. a) Determine the mass fractions of a and B phases. b) Determine the mass fractions of primary B and eutectic microconstituents. c) Determine the mass fraction of eutectic B. Composition (at%...
The following figures and tabulated data were obtained during the Phase diagram experiment for Pb...
The following figures and tabulated data were obtained during the Phase diagram experiment for Pb-Sn using DSC machine. Tables 1-4 shows the wt % composition of Sn in Pb at different temperatures.1) Use figures 1 and 2 , and Table 1 to plot the Temperature ({ }℃) against wt % composition of Sn in Pb.2) Use the figures 1 and 2 , and Table 2 to plot the Temperature ({ }℃) against wt % composition of Sn in Pb on...
The following figures and tabulated data were obtained during the Phase diagram experiment for Pb...
Question 4
The following figures and tabulated data were obtained during the Phase diagram experiment for Pb-Sn using DSC machine. Tables 1-4 shows the wt% composition of Sn in Pb at 1) Use figures 1 and 2, and Table 1 to plot the Temperature 2) Use the figures 1 and 2, and Table 2 to plot the different temperatures (°C) against wt% composition of Sn in Pb Temperature (°C) against wt% composition of Sn in Pb on the same graph...
A lead-tin alloy of composition 30 wt% Sn-70 wt% Pb is slowly heated from a temperature...
A lead-tin alloy of composition 30 wt% Sn-70 wt% Pb is slowly heated from a temperature of 150°C (300°F) (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% Sn) 40 100 327C 300 500 232 C 400 183°C 18.3 61.9 97.8 300 100...
For a lead-tin alloy of composition 40 wt% Sn–60 wt% Pb with a total mass of...
For a lead-tin alloy of composition 40 wt% Sn–60 wt% Pb with a total mass of 2.8 kg at 180°C (355°F): (a) Determine the mass of the a and ß phases. (b) What is the primary phase present for this alloy? (c) Determine the mass of the primary phase and the eutectic microconstituents. (d) Determine the mass of eutectic a. Composition (at% Sn) 40 60 80 100 o 20 327°C 600 300 Liquid 500 232°C a + L 200 a...
14. Use the lead-tin phase diagram (below). A Sn-Pb alloy is heated to a temperature within...
14. Use the lead-tin phase diagram (below). A Sn-Pb alloy is heated to a temperature within the a liquid phase region. If the composition of the a phase is 10 wt% Sn, determine: a. The temperature of the alloy b. The composition of the liquid phase c. What is the maximum solubility of Sn in a and Pb in B? d. What is the eutectic composition for the Pb-Sn system? Composition (at% Sn) 0 20 40 60 80 100 327°C...
Materials science
Consider the graph below for a Pb-35% Sn alloy. Is the alloy hypoeutectic or hypereutectic: The alloy is -select 400 300 Liquidus Solidus Liquidus Solidus α+L 200 -B 19 183 61.9 97.5 Solvus - Solvus 100 + Pb 40 20 60 80 Sn Weight percent tin Enter your answers below with whole numbers. The composition of the first solid to form, Cf, during solidification C % Sn The amounts (%a, %2) and compositions (Ca, C2) of each phase...
1. Below is the phase diagram of Pb-Sn alloy. (a) Describe what happens to a 20%-Pb 80%-Sn alloy as temperature decreases from 300 °C to 50 °C; use sketches as needed. (b) When temperature is kept constant at 200 °C, describe what happens as the Sn concentration is increased from 10 wt% to 90 wt%; use sketches as needed. 100% Liquid Procutectic α 24% Eutectic α Liquid 76% Eutectic β Alloy I Alloy 2 Liquid 49% 327 Liquidus 300 Liquid...
Based on the diagram below, what would be the weight percent of the solid at point N? (Give your answer in %, so if you calculate 0.10 or 10%, enter as 10) 400 L A LIQUID M 300 LIQUIDUS LIQUIDUS L+B a+L SOLIDUS DHSOLIDUS 97.5% B 200 C SOLIDUS 183°C 19.2% 61.9% 100 R* R R 100 Pure Sn 80 60 40 20 Pure Pb Composition in wt.% Sn Temperature (Do OOLVUS SOLVUS
Based on the diagram below, what would...
For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and slowly cooling down to room temperature. A Eutectic phase diagram of lead-tin alloy is shown in figure 3. What are the expected phases at 250°C, 150°C and at room temperature and estimate approximate phase fractions at these temperatures. Schematically draw the microstructures that would form at 250°C, 150°C and at room temperature. For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and...
(12 Question 2: points: 4 pts each) For a Lead-Tin (Pb-Sn) alloy of composition 85 wt% Sn - 15 wt % Pb and at 182 °C determine the followings: Show your calculation details in your answer and draw lines on the phase diagram to label the phases and compositions. a) Determine the mass fractions of a and B phases. b) Determine the mass fractions of primary B and eutectic microconstituents. c) Determine the mass fraction of eutectic B. Composition (at%...
The following figures and tabulated data were obtained during the Phase diagram experiment for Pb-Sn using DSC machine. Tables 1-4 shows the wt % composition of Sn in Pb at different temperatures.1) Use figures 1 and 2 , and Table 1 to plot the Temperature ({ }℃) against wt % composition of Sn in Pb.2) Use the figures 1 and 2 , and Table 2 to plot the Temperature ({ }℃) against wt % composition of Sn in Pb on...
Question 4
The following figures and tabulated data were obtained during the Phase diagram experiment for Pb-Sn using DSC machine. Tables 1-4 shows the wt% composition of Sn in Pb at 1) Use figures 1 and 2, and Table 1 to plot the Temperature 2) Use the figures 1 and 2, and Table 2 to plot the different temperatures (°C) against wt% composition of Sn in Pb Temperature (°C) against wt% composition of Sn in Pb on the same graph...
A lead-tin alloy of composition 30 wt% Sn-70 wt% Pb is slowly heated from a temperature of 150°C (300°F) (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% Sn) 40 100 327C 300 500 232 C 400 183°C 18.3 61.9 97.8 300 100...
For a lead-tin alloy of composition 40 wt% Sn–60 wt% Pb with a total mass of 2.8 kg at 180°C (355°F): (a) Determine the mass of the a and ß phases. (b) What is the primary phase present for this alloy? (c) Determine the mass of the primary phase and the eutectic microconstituents. (d) Determine the mass of eutectic a. Composition (at% Sn) 40 60 80 100 o 20 327°C 600 300 Liquid 500 232°C a + L 200 a...
14. Use the lead-tin phase diagram (below). A Sn-Pb alloy is heated to a temperature within the a liquid phase region. If the composition of the a phase is 10 wt% Sn, determine: a. The temperature of the alloy b. The composition of the liquid phase c. What is the maximum solubility of Sn in a and Pb in B? d. What is the eutectic composition for the Pb-Sn system? Composition (at% Sn) 0 20 40 60 80 100 327°C...
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