5. The table below lists the yield strength, tensile strength, and ductility of pure copper and of a number of copper-based alloys (all materials in the annealed condition). a) How does the addition of impurity atoms to copper affect each of these properties? Which property appears to be most affected (on a percentage change basis)?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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5. The table below lists the yield strength, tensile strength, and ductility of pure copper and of a number of copper-based alloys (all materials in the annealed condition).
a) How does the addition of impurity atoms to copper affect each of these properties? Which property appears to be most affected (on a percentage change basis)?

Yield
Tensile
Ductility
(SEL)
Alloy
Composition
Strength
Strength
(MPa)
(MPa)
pure copper
100% Cu
33
210
60%
C26000 brass
Cu with 30 wt.% Zn
160
300
54%
C71500 Monel
Cu with 30 wt.% Ni
165
385
56%
C17200 beryllium copper
Cu with 1.9 wt.% Be
206
482
54%
Transcribed Image Text:Yield Tensile Ductility (SEL) Alloy Composition Strength Strength (MPa) (MPa) pure copper 100% Cu 33 210 60% C26000 brass Cu with 30 wt.% Zn 160 300 54% C71500 Monel Cu with 30 wt.% Ni 165 385 56% C17200 beryllium copper Cu with 1.9 wt.% Be 206 482 54%
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