Mechanical Metallurgy |
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Page 175
... diffusion If the dislocations are heavily jogged due to prior plastic deformation ( see Sec . 5-11 ) , then nucleation is negligible and the activation energy for climb will be determined only by the activation energy for self - diffusion ...
... diffusion If the dislocations are heavily jogged due to prior plastic deformation ( see Sec . 5-11 ) , then nucleation is negligible and the activation energy for climb will be determined only by the activation energy for self - diffusion ...
Page 209
... diffusion of carbon in alpha iron . Nitrogen plays a more important role in the strain aging of iron than carbon because it has a higher solubility and diffusion coefficient and produces less com- plete precipitation during slow cooling ...
... diffusion of carbon in alpha iron . Nitrogen plays a more important role in the strain aging of iron than carbon because it has a higher solubility and diffusion coefficient and produces less com- plete precipitation during slow cooling ...
Page 464
... diffusion ( Fig . 13-9 ) . Since the activation energy for self - diffusion is the sum of the energies for the formation and movement of vacancies , this gives strong support to the view that dislocation climb is the rate - controlling ...
... diffusion ( Fig . 13-9 ) . Since the activation energy for self - diffusion is the sum of the energies for the formation and movement of vacancies , this gives strong support to the view that dislocation climb is the rate - controlling ...
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