Estimate the fraction of recrystallization from the photomicrograph in Figure 7.21c.% Annealing temperature (°F)4006008001000120060060Tensile strength5050040400Ductility300Recovery!RecrystallizationGrain growthCold-workedand recoveredgrains0.040Newgrains0.0300.0200.010100200300400500600700Annealing temperature (°C)Grain size (mm)Tensile strength (MPa)30Ductility (%EL)20

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Engineering

Civil Engineering

Estimate the fraction of recrystallization from the photomicrograph in Figure 7.21c. i

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter15: Experimental Methods

Section: Chapter Questions

Problem 9ETSQ

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Concept explainers

Evaluation of Transportation Projects

Civil engineers undertake a variety of projects related to construction. Building construction projects, structural projects, highway, road construction projects, transportation projects, etc. Transportation projects are related to public constructions that focus to build new connectivity in public transportation. To improve and maintain existing transport facilities also falls under the domain of transportation projects. Some of its objectives include planning, evaluation, designing, development, finance, construction, reconstruction, demolition, rehabilitation, improvement, acquisition, operation, and maintenance. As per the law, all transport projects are authorized to the construction firm that permits them to change the land area meant for public use.

Question

Estimate the fraction of recrystallization from the photomicrograph in Figure 7.21c.
%

Annealing temperature (°F)
400
600
800
1000
1200
600
60
Tensile strength
50
500
40
400
Ductility
300
Recovery!
Recrystallization
Grain growth
Cold-worked
and recovered
grains
0.040
New
grains
0.030
0.020
0.010
100
200
300
400
500
600
700
Annealing temperature (°C)
Grain size (mm)
Tensile strength (MPa)
30
Ductility (%EL)
20

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