Mechanical Behavior of Materials |
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Page 81
... displacement across the planes is shown in Fig . 3.1b . When the atoms in the upper plane have been displaced by one - half of their transit distance ( b / 2 ) , the crystal energy is at a maximum and atoms in the upper plane are , in ...
... displacement across the planes is shown in Fig . 3.1b . When the atoms in the upper plane have been displaced by one - half of their transit distance ( b / 2 ) , the crystal energy is at a maximum and atoms in the upper plane are , in ...
Page 89
... displacement of each atomic column with respect to the grid is plotted as a function of distance along the slip plane . The distance over which the displacement changes from -b / 2 to + b / 2 defines the dislocation width . This is ...
... displacement of each atomic column with respect to the grid is plotted as a function of distance along the slip plane . The distance over which the displacement changes from -b / 2 to + b / 2 defines the dislocation width . This is ...
Page 128
... displacement of the top plane of the crystal relative to the bottom one . This displacement is the sum of the displacements of all of the individual dislocations , i.e. , A = A ,, where A , represents an individual dislocation displacement ...
... displacement of the top plane of the crystal relative to the bottom one . This displacement is the sum of the displacements of all of the individual dislocations , i.e. , A = A ,, where A , represents an individual dislocation displacement ...
Contents
Elastic Behavior | 46 |
Plastic Deformation in Single and Polycrystalline | 137 |
Strengthening of Crystalline Materials | 162 |
Copyright | |
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alloys applied stress behavior Burgers vector Chap Coble creep composite crack growth crack tip craze creep fracture creep rate crystalline cubic cyclical decreases diffusion diffusional discussed dislocation density dislocation glide dislocation motion displacement ductile ductile fracture edge dislocation effect embrittlement energy fatigue fiber FIGURE flow stress fracture mechanism fracture toughness glass grain boundaries hardening high-temperature illustrated in Fig increases initial interaction length linear elastic low temperatures martensite material material's matrix mechanism map metals microscopic microstructural MN/m² Mode II fracture modulus Nabarro-Herring noncrystalline nucleation obstacles occurs particle phase plastic deformation plastic flow polycrystal polymers ratio recrystallization region result schematically screw dislocation shear stress shown in Fig single crystals slip plane slip systems solid steel strain rate strengthening stress levels stress-strain curve structure superplastic surface takes place TCRSS tensile strength tensile stress transition values viscoelastic viscosity void growth volume fraction yield strength