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phase diagrams for Cu-Ni and Cu-Ag systems below to answer the question: i. Wt% Ni in the liquid a Cu-Ni system at point B above.

phase diagrams for Cu-Ni and Cu-Ag systems below to answer the question: i. Wt% Ni in the liquid a Cu-Ni system at point B above.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Use the phase diagrams for Cu-Ni and Cu-Ag systems below to answer the question:

i. Wt% Ni in the liquid a Cu-Ni system at point B above.

 

### Diagram Explanation #### Left Diagram: Copper-Nickel Phase Diagram - **Axes**: - The x-axis represents the composition in weight percent Nickel (Ni), ranging from 0 to 100%. - The y-axis represents temperature in degrees Celsius (°C), ranging from 1000°C to 1450°C. - **Lines and Areas**: - **Liquidus Line**: Marks the boundary above which the mixture is entirely liquid. - **Solidus Line**: Marks the boundary below which the mixture is entirely solid. - **Region Between Lines**: Represents a mixture of solid and liquid phases. - Key temperatures: - 1085°C (Cu melting point at 0% Ni). - 1453°C (Ni melting point at 100% Ni). #### Right Diagram: Silver-Copper Phase Diagram - **Axes**: - The x-axis shows composition in weight percent Silver (Ag), ranging from 0 to 100%. - The y-axis on the left represents temperature in degrees Fahrenheit (°F), ranging from 400°F to 2000°F. - The y-axis on the right translates this temperature to degrees Celsius (°C), ranging from approximately 200°C to 1066°C. - **Lines and Areas**: - **Liquidus Line**: Indicates the temperatures above which the alloy is completely liquid. - **Solidus Line**: Indicates the temperatures below which the alloy is completely solid. - **Solvus Line**: Defines the boundaries where different solid solubility exists. - **Eutectic Point**: Located at around 72% Ag, with a eutectic temperature of 779°C (1434°F), where liquid directly solidifies into two different solid phases, labeled as α and β. - Regions labeled as α, β, and liquid denote different phase combinations and compositions in equilibrium. Both diagrams serve to illustrate the thermal and compositional relationships of copper-nickel and silver-copper alloys, which are critical for understanding their melting behavior, phase transformations, and metallurgical properties.
Transcribed Image Text:### Diagram Explanation #### Left Diagram: Copper-Nickel Phase Diagram - **Axes**: - The x-axis represents the composition in weight percent Nickel (Ni), ranging from 0 to 100%. - The y-axis represents temperature in degrees Celsius (°C), ranging from 1000°C to 1450°C. - **Lines and Areas**: - **Liquidus Line**: Marks the boundary above which the mixture is entirely liquid. - **Solidus Line**: Marks the boundary below which the mixture is entirely solid. - **Region Between Lines**: Represents a mixture of solid and liquid phases. - Key temperatures: - 1085°C (Cu melting point at 0% Ni). - 1453°C (Ni melting point at 100% Ni). #### Right Diagram: Silver-Copper Phase Diagram - **Axes**: - The x-axis shows composition in weight percent Silver (Ag), ranging from 0 to 100%. - The y-axis on the left represents temperature in degrees Fahrenheit (°F), ranging from 400°F to 2000°F. - The y-axis on the right translates this temperature to degrees Celsius (°C), ranging from approximately 200°C to 1066°C. - **Lines and Areas**: - **Liquidus Line**: Indicates the temperatures above which the alloy is completely liquid. - **Solidus Line**: Indicates the temperatures below which the alloy is completely solid. - **Solvus Line**: Defines the boundaries where different solid solubility exists. - **Eutectic Point**: Located at around 72% Ag, with a eutectic temperature of 779°C (1434°F), where liquid directly solidifies into two different solid phases, labeled as α and β. - Regions labeled as α, β, and liquid denote different phase combinations and compositions in equilibrium. Both diagrams serve to illustrate the thermal and compositional relationships of copper-nickel and silver-copper alloys, which are critical for understanding their melting behavior, phase transformations, and metallurgical properties.
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