Mechanical Metallurgy |
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Page 378
... specimen . This side is cooled with liquid nitrogen , and the other side is kept at a higher tem- perature . Thus , a temperature gradient is maintained across the width of the specimen . A crack is started at the cold end by an impact ...
... specimen . This side is cooled with liquid nitrogen , and the other side is kept at a higher tem- perature . Thus , a temperature gradient is maintained across the width of the specimen . A crack is started at the cold end by an impact ...
Page 447
... specimen only at a particular stress , and if the specimen fails before the cutoff limit of 107 cycles then we know that the fatigue limit of the specimen is somewhere below the stress level which we used . Consequently , if the ...
... specimen only at a particular stress , and if the specimen fails before the cutoff limit of 107 cycles then we know that the fatigue limit of the specimen is somewhere below the stress level which we used . Consequently , if the ...
Page 448
... specimen is tested at the estimated value of the fatigue limit . If this specimen fails , the stress for the next specimen is decreased by a fixed increment . This procedure is continued for each succeeding specimen until a runout is ...
... specimen is tested at the estimated value of the fatigue limit . If this specimen fails , the stress for the next specimen is decreased by a fixed increment . This procedure is continued for each succeeding specimen until a runout 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