For a steel alloy, specify the amount of deformation (%CW) that is necessary to give a minimum Brinell hardness of 225 and at the same time provide a ductility of at least 12%EL. You may need to use Animated Figure 7.19b and Animated Figured 7.19c.There are 2 answers. Ductility (%EL)706050403020100Brass1040 Steet10Copper20 30 40 50Percent cold work60 70Percent cold work = 0Ductility = 0 Tensile strength (MPa)900800700600500400300200a101040 SteelBrassCopper20 30 40 50Percent cold work60140120100|-80604070Percent cold work = 0Yield strength = 200 MPaYield strength = 29 ksiTensile strength (ksi)

Solution: Given Data: BHN=225D=12%EL

Answered: For a steel alloy, specify the amount…

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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For a steel alloy, specify the amount of deformation (%CW) that is necessary to give a minimum Brinell hardness of 225 and at the same time provide a ductility of at least 12%EL. You may need to use Animated Figure 7.19b and Animated Figured 7.19c.

There are 2 answers.

Ductility (%EL)
70
60
50
40
30
20
10
0
Brass
1040 Steet
10
Copper
20 30 40 50
Percent cold work
60 70
Percent cold work = 0
Ductility = 0

Tensile strength (MPa)
900
800
700
600
500
400
300
200
a
10
1040 Steel
Brass
Copper
20 30 40 50
Percent cold work
60
140
120
100
|
-80
60
40
70
Percent cold work = 0
Yield strength = 200 MPa
Yield strength = 29 ksi
Tensile strength (ksi)

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