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6. The phase diagram for magnesium-copper at constant pressure shows that two compounds are formed: MgCu2, which melts at 800°C, and Mg Cu, which melts at 580°C. Copper melts at 1085°C, and magnesium at 648°C. The three eutectics are 9.4% by weight Mg (680°C), 33.4% by weight Mg (580°C) and 65% by weight Mg (380°C). Construct the phase diagram. State the variance for each area and eutectic points.

6. The phase diagram for magnesium-copper at constant pressure shows that two compounds are formed: MgCu2, which melts at 800°C, and Mg Cu, which melts at 580°C. Copper melts at 1085°C, and magnesium at 648°C. The three eutectics are 9.4% by weight Mg (680°C), 33.4% by weight Mg (580°C) and 65% by weight Mg (380°C). Construct the phase diagram. State the variance for each area and eutectic points.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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6. The phase diagram for magnesium-copper at constant pressure shows that two compounds are formed: MgCu2, which melts at 800°C, and Mg2Cu, which melts at 580°C. Copper melts at 1085°C, and magnesium at 648°C. The three eutectics are 9.4% by weight Mg (680°C), 33.4% by weight Mg (580°C) and 65% by weight Mg (380°C). Construct the phase diagram. State the variance for each area and eutectic points. 7. The following data have been found for the system antimony-cadmium: Weight % Cd First break in cooling 20 37.5 47.5 50 58 70 93 100 550 461 419 400 curve Plateau in cooling curve 630 410 410 410 410 439 295 295 321 Construct the phase diagaram, assuming that no breaks other than those actually occur in the cooling curve. Label the diagram, and give the formula of any compound formed. 8. For the binary system Cu-Ni, the following data are available from cooling experiments: melt composition (atomic % Ni) composition of solid first formed on cooling T(°C) (atomic % Ni) $140HCA 1100 3 10 1180 20 37 P Type here to search W DELL
Transcribed Image Text:6. The phase diagram for magnesium-copper at constant pressure shows that two compounds are formed: MgCu2, which melts at 800°C, and Mg2Cu, which melts at 580°C. Copper melts at 1085°C, and magnesium at 648°C. The three eutectics are 9.4% by weight Mg (680°C), 33.4% by weight Mg (580°C) and 65% by weight Mg (380°C). Construct the phase diagram. State the variance for each area and eutectic points. 7. The following data have been found for the system antimony-cadmium: Weight % Cd First break in cooling 20 37.5 47.5 50 58 70 93 100 550 461 419 400 curve Plateau in cooling curve 630 410 410 410 410 439 295 295 321 Construct the phase diagaram, assuming that no breaks other than those actually occur in the cooling curve. Label the diagram, and give the formula of any compound formed. 8. For the binary system Cu-Ni, the following data are available from cooling experiments: melt composition (atomic % Ni) composition of solid first formed on cooling T(°C) (atomic % Ni) $140HCA 1100 3 10 1180 20 37 P Type here to search W DELL
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