MECHANICAL METALLURGY |
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Page 337
... constant , the material is said to show Newtonian viscosity . T = n dy dt ( 13-2 ) η where is the coefficient of ... constant- load test ; curve B , constant - stress test . To determine the engineering creep curve of a metal , a ...
... constant , the material is said to show Newtonian viscosity . T = n dy dt ( 13-2 ) η where is the coefficient of ... constant- load test ; curve B , constant - stress test . To determine the engineering creep curve of a metal , a ...
Page 338
... constant throughout the test . Thus , as the specimen elongates and decreases in cross - sectional area , the axial stress increases . The initial stress which was applied to the specimen is usually the reported . value of stress ...
... constant throughout the test . Thus , as the specimen elongates and decreases in cross - sectional area , the axial stress increases . The initial stress which was applied to the specimen is usually the reported . value of stress ...
Page 351
... constant load or stress conditions , the total creep strain is a simple function of 0 . € = = f ( 0,0c ) = σε constant ( 13-18 ) Figure 13-8 shows a typical correlation between and for creep data obtained at several temperatures . An ...
... constant load or stress conditions , the total creep strain is a simple function of 0 . € = = f ( 0,0c ) = σε constant ( 13-18 ) Figure 13-8 shows a typical correlation between and for creep data obtained at several temperatures . An ...
Contents
Introduction | 5 |
The Torsion Test | 10 |
Stress and Strain Relationships for Elastic Behavior | 17 |
Copyright | |
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alloys aluminum annealing ASTM axis behavior brittle fracture Burgers vector cent compressive considered constant crack decrease determined diameter dislocation line ductile edge dislocation effect elastic elongation equation factor fatigue limit fatigue properties flow curve fracture stress given grain boundaries hardness increase indentation internal friction lattice load martensite material maximum measure Metals Park modulus notch number of cycles occurs orientation particles pile-up plastic deformation principal stresses Proc produced quenched ratio recrystallization reduction of area region residual stresses resolved shear stress screw dislocations shear stress shown shows single crystals slip direction slip lines slip plane slip system Society for Metals solid solution solute atoms specimen stacking fault steel strain energy strain hardening strain rate stress concentration stress-strain curve structure surface tensile strength tensile stress tension theory tion torsion Trans twins vacancies yield point yield strength yield stress