Mechanical Metallurgy |
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Page 143
... STRAIN HARDENING OF SINGLE CRYSTALS One of the chief characteristics of the plastic deformation of metals is the fact that the shear stress required to produce slip continuously increases with increasing shear strain . The increase in ...
... STRAIN HARDENING OF SINGLE CRYSTALS One of the chief characteristics of the plastic deformation of metals is the fact that the shear stress required to produce slip continuously increases with increasing shear strain . The increase in ...
Page 146
... strain hardening ( slope of stress - strain curve ) would be very high and fracture would occur at low values of strain . The formation of jogs in screw dislocations impedes their motion and may even lead to the formation of vacancies ...
... strain hardening ( slope of stress - strain curve ) would be very high and fracture would occur at low values of strain . The formation of jogs in screw dislocations impedes their motion and may even lead to the formation of vacancies ...
Page 223
... strain hardening is still low and slip lines can be distinguished although they are finer and more closely spaced . The yield drop and low rate of strain hardening suggest that dislocations cut through the zones once the stress reaches ...
... strain hardening is still low and slip lines can be distinguished although they are finer and more closely spaced . The yield drop and low rate of strain hardening suggest that dislocations cut through the zones once the stress reaches ...
Contents
Introduction 325 | 3 |
Elements of the Theory of Plasticity | 72 |
Plastic Deformation of Single Crystals | 105 |
Copyright | |
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alloys angle annealed atoms axis behavior billet brittle fracture Burgers vector cold-worked components compression constant crack criterion cycles decrease determined diameter direction dislocation line ductile edge dislocation elastic elongation energy equations extrusion factor failure fatigue limit fibers flow curve flow stress force forging friction given grain boundaries hot-working hydrostatic increases lattice length load machining martensite material matrix maximum measured mechanical metallurgical Metals Park modulus normal stress notch occurs orientation particles percent plastic deformation plastic strain polymer pressure produced properties ratio reduction region residual stresses rolling screw dislocation shear strain shear stress sheet shown in Fig shows slip plane slip systems Society for Metals solid specimen steel strain hardening strain rate stress-strain curve structure surface tensile strength tensile stress tensor theory thermal thickness tool torsion Trans usually velocity workpiece yield strength yield stress York