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Question Seven (7) a) With the aid of a sketch of a phase diagram, explain how and under what conditions can water exist in three (3) different states i.e. gas, liquid and solid.

Question Seven (7) a) With the aid of a sketch of a phase diagram, explain how and under what conditions can water exist in three (3) different states i.e. gas, liquid and solid.

Welding: Principles and Applications (MindTap Course List)
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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Please Answer the all of part 7
Question Seven (7) a) With the aid of a sketch of a phase diagram, explain how and under what conditions can water exist in three (3) different states i.e. gas, liquid and solid. b) It is widely known that, pure metallic materials are characterised by limited properties. As such, to improve these properties certain engineering processes, such as alloying and heat treatments, are normally conducted. Based on Figure 7.1 which shows variations in mechanical properties with respect to the Copper (Cu) and Nickel (Ni) composition variations for a Cu-Ni alloy, answer the following questions What are the Tensile strengths and ductilities for the two constituent elements, Copper (Cu) and Nickel (Ni)? i. i. If alloying nickel (Ni) into copper (Cu) was exclusively for tensile strength improvement, estimate the optimum composition, and give your reasons. Based on the Ductility against Composition plot, what do you think is the reason for alloying nickel (Ni) into copper (Cu), and give your reasons. Illustrate the difference in tensile strengths between Copper (Cu) and Nickel (Ni) in terms of sketches of the bonding energy (Eo) vs interatomic separation (r) plots iii. v. 400 50 40 300 200 20 40 0 80 00 Cu Ni Composition, wt.% Ni Composition, wt%N Figure 7.1: Property variation with respect to the Cu-Ni composition variation Tensile Strength (MPa) Ductility (%EL)
Transcribed Image Text:Question Seven (7) a) With the aid of a sketch of a phase diagram, explain how and under what conditions can water exist in three (3) different states i.e. gas, liquid and solid. b) It is widely known that, pure metallic materials are characterised by limited properties. As such, to improve these properties certain engineering processes, such as alloying and heat treatments, are normally conducted. Based on Figure 7.1 which shows variations in mechanical properties with respect to the Copper (Cu) and Nickel (Ni) composition variations for a Cu-Ni alloy, answer the following questions What are the Tensile strengths and ductilities for the two constituent elements, Copper (Cu) and Nickel (Ni)? i. i. If alloying nickel (Ni) into copper (Cu) was exclusively for tensile strength improvement, estimate the optimum composition, and give your reasons. Based on the Ductility against Composition plot, what do you think is the reason for alloying nickel (Ni) into copper (Cu), and give your reasons. Illustrate the difference in tensile strengths between Copper (Cu) and Nickel (Ni) in terms of sketches of the bonding energy (Eo) vs interatomic separation (r) plots iii. v. 400 50 40 300 200 20 40 0 80 00 Cu Ni Composition, wt.% Ni Composition, wt%N Figure 7.1: Property variation with respect to the Cu-Ni composition variation Tensile Strength (MPa) Ductility (%EL)
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