ZuoTi.Pro
Question

Consider the hypothetical eutectic phase diagram for metals A and B, which is similar to that for the lead-tin system, (shown in the figure below.) Assume that (1) O and S phases exist at the A and B extremities of the phase diagram, respectively; (2) the eutectic composition is 36 wt% A-64 wt% B, and (3) the composition of the phase at the eutectic temperature is 88 wt% A-12 wt% B. Determine the composition of an alloy that will yield primary P and total mass fractions of 0.362 and 0.768, respectively Composition (at% Sn) 20 40 60 100 327 C 300 Liquid 500 232°C 200 183 C 18.3 61.9 97.8 300 O 100 100 20 40 60 100 (Pb) Composition (wt% Sn) wt% B 79.72

engineering   Mechanical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Co 36, C-G4 98(fian the graph) O tad, c卫 -C®.. 998-G4. 338 9.8-36 618 P-36 61 0.4S 3 a) tu techc 148-12 8 - 0.839 998-84 bjw

3 2
Add a comment
Know the answer?
Add Answer to:
Consider the hypothetical eutectic phase diagram for metals A and B, which is similar to that...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Question 4 (25 marks) (a) Consider the hypothetical eutectic phase diagram for metal for lead-tin system....

    Question 4 (25 marks) (a) Consider the hypothetical eutectic phase diagram for metal for lead-tin system. Assume that (1) A and B phase cutectic phase diagram for metals A and B, which is similar to that 1. Assume that (1) a and B phases exist at the A and B extremities of the phase diagram, respectively; (2) the eutectic composi m, respectively; (2) the eutectic composition is 36 wt% A-64 wt% B; and (3) the composition of the a phase...

  • 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...

  • 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: The temperature of the alloy 275°C b. The composition of the liquid phase a. c. What is the maximum solubility of Sn in a and Pb in B? Sna = 18.3% Pog: 2.2 % d. What is the eutectic composition for the Pb-Sn system? Sn = 61.9%...

  • 9.34 Consider the hypothetical eutectic phase dia- gram for metals A and B, which is similar...

    9.34 Consider the hypothetical eutectic phase dia- gram for metals A and B, which is similar to that for the lead-tin system, Figure 9.8. As- sume that (1) a and ß phases exist at the A and B extremities of the phase diagram, re- spectively; (2) the eutectic composition is 47 wt% B-53 wt% A; and (3) the composition of the B phase at the eutectic temperature is 92.6 wt% B-7.4 wt% A. Determine the com- position of an alloy...

  • structure and properties of materials Question 2: (12 points: 4 pts each) For a Lead-Tin (Pb-Sn)...

    structure and properties of materials Question 2: (12 points: 4 pts each) For a Lead-Tin (Pb-Sn) alloy of composition 20 wt% Sn - 80 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 a and eutectic microconstituents. c) Determine the mass fraction of...

  • (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%...

  • 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...

  • 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...

  • Question 1: (16 points: 4 pts each) A 45 wt% Pb - 55 wt% Mg alloy...

    Question 1: (16 points: 4 pts each) A 45 wt% Pb - 55 wt% Mg alloy is slowly cooled from 700°C to 400 °C. (a) At what temperature does the first solid phase form? (b) What is the composition of this solid phase? c) At what temperature does the liquid solidify? (d) What is the composition of this last remaining liquid phase? Composition (at% Pb) 10 20 30 40 70 100 700 L 600 L + MezPo M 500 400...

  • 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...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT