Mechanical Metallurgy |
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Page 119
... Grain Boundaries and Deformation The boundaries between grains in a polycrystalline aggregate are a region of disturbed lattice only a few atomic diameters wide . In the general case , the crystallographic orientation changes abruptly ...
... Grain Boundaries and Deformation The boundaries between grains in a polycrystalline aggregate are a region of disturbed lattice only a few atomic diameters wide . In the general case , the crystallographic orientation changes abruptly ...
Page 344
... boundaries provides barriers to dislocation move- ment and results in a decrease in creep strain . Grain - boundary Deformation It has already been shown in Sec . 8-5 that the grain - boundary relax- ation which is measured by internal ...
... boundaries provides barriers to dislocation move- ment and results in a decrease in creep strain . Grain - boundary Deformation It has already been shown in Sec . 8-5 that the grain - boundary relax- ation which is measured by internal ...
Page 347
... grain - boundary sliding can occur , cracks may be initiated at triple points where three grain boundaries meet on a plane of polish . This type of grain - boundary failure is preva- lent for high stresses , where the total life is ...
... grain - boundary sliding can occur , cracks may be initiated at triple points where three grain boundaries meet on a plane of polish . This type of grain - boundary failure is preva- lent for high stresses , where the total life is ...
Contents
Introduction 3 35678OORE | 3 |
Stress and Strain Relationships for Elastic Behavior | 17 |
Elements of the Theory of Plasticity | 54 |
Copyright | |
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alloys aluminum angle annealed ASTM axis behavior bending billet brittle fracture Burgers vector cent compressive constant crack creep rate decrease determined diameter direction dislocation line distribution drawing ductile edge dislocation effect elastic elongation equation extrusion factor failure fatigue limit flow curve flow stress force forging forming friction given grain boundaries hardness high-temperature increase indentation lattice length load longitudinal mandrel martensite material maximum measured mechanical metallurgical Metals Park method modulus notch obtained occurs orientation particles plastic deformation pressure principal stresses Proc produced properties punch quenched radius ratio reduction of area region relationship residual stresses rolling screw dislocations shear stress sheet shows single crystals slip plane Society for Metals specimen steel strain energy strain hardening strain rate stress-strain curve structure surface temper tensile strength tensile stress theory thickness tion torsion Trans transition temperature tube yield strength yield stress στ