MECHANICAL METALLURGY |
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Page 287
GEORGE E. DIETER, JR. the criterion for plastic flow , we can write or = 0.500 0.47pm Pm≈ 1.100 ( 11-7 ) where σ is the yield stress in tension or compression . Therefore , the deformation under the indenter is elastic until the mean ...
GEORGE E. DIETER, JR. the criterion for plastic flow , we can write or = 0.500 0.47pm Pm≈ 1.100 ( 11-7 ) where σ is the yield stress in tension or compression . Therefore , the deformation under the indenter is elastic until the mean ...
Page 465
... flow curve ( true stress - strain curve ) determined for either tension or compression is the basic relationship for the strain - hardening behavior of the material . It is used to determine the value of the flow stress σo for ...
... flow curve ( true stress - strain curve ) determined for either tension or compression is the basic relationship for the strain - hardening behavior of the material . It is used to determine the value of the flow stress σo for ...
Page 466
... flow stress for reductions greater than 70 to 80 per cent by linear extrapolation when σ is plotted against the logarithm of the strain or the reduction in area.2 For hot working the metal approaches an ideal plastic material , and the flow ...
... flow stress for reductions greater than 70 to 80 per cent by linear extrapolation when σ is plotted against the logarithm of the strain or the reduction in area.2 For hot working the metal approaches an ideal plastic material , and the flow ...
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