BI (a) Figure BI below shows the equilibrium phase diagram of hypothetical A - B alloy system. Answer the following questions. (i) What are technical names of Line A and Line B? What do they signify? (ii) With the aid sketches, portray the microstructures and phases that are present for the 20wt%A-80wt%B-alloy (Alloy A) at the temperatures of 780 °C, 670 °C, 652 °C, and 500 °C, respectively. 40wt%L, in terms of weight, at a (iii) Assume an A - B alloy (Alloy B) has 60wt%a temperature of 652 °C. Determine the overall composition of Alloy B. erature (°C) 700 600 500 400 800 0 A 760 °C Line B a 9.5 20 Line A a + L 650 °C 40 wt%B Figure B1 Liquid (L) 52.5 a + ß - 60 B+L 80 93.7 B 100 B

BI (a) Figure BI below shows the equilibrium phase diagram of hypothetical A - B alloy system. Answer the following questions. (i) What are technical names of Line A and Line B? What do they signify? (ii) With the aid sketches, portray the microstructures and phases that are present for the 20wt%A-80wt%B-alloy (Alloy A) at the temperatures of 780 °C, 670 °C, 652 °C, and 500 °C, respectively. 40wt%L, in terms of weight, at a (iii) Assume an A - B alloy (Alloy B) has 60wt%a temperature of 652 °C. Determine the overall composition of Alloy B. erature (°C) 700 600 500 400 800 0 A 760 °C Line B a 9.5 20 Line A a + L 650 °C 40 wt%B Figure B1 Liquid (L) 52.5 a + ß - 60 B+L 80 93.7 B 100 B

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter26: Welding Metallurgy

Section: Chapter Questions

Problem 12R: What is a eutectic composition?

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