Mechanical Metallurgy |
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Page 294
... thermal expansion E the isothermal Young's modulus = T = the absolute temperature Со = the specific heat at constant volume Since a is positive for most materials and the other terms in Eq . ( 8-1 ) are also positive , it follows that ...
... thermal expansion E the isothermal Young's modulus = T = the absolute temperature Со = the specific heat at constant volume Since a is positive for most materials and the other terms in Eq . ( 8-1 ) are also positive , it follows that ...
Page 362
... Thermal activation barrier . curve to cause plastic flow at a value to . However , at some temperature greater than 0 ° K , thermal fluctuations will assist the applied stress and plastic flow can occur at a stress t which is less than ...
... Thermal activation barrier . curve to cause plastic flow at a value to . However , at some temperature greater than 0 ° K , thermal fluctuations will assist the applied stress and plastic flow can occur at a stress t which is less than ...
Page 449
... thermal stresses under conditions where no stresses are produced by me- chanical causes . Thermal stresses result when the change in dimensions of a member as the result of a temperature change is prevented by some kind of constraint ...
... thermal stresses under conditions where no stresses are produced by me- chanical causes . Thermal stresses result when the change in dimensions of a member as the result of a temperature change is prevented by some kind of constraint ...
Contents
Elements of the Theory of Plasticity | 3 |
Dislocation Theory | 150 |
Strengthening Mechanisms | 190 |
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 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 single crystals 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