Mechanical Metallurgy |
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Page 283
... indentation - hardness test was proposed by J. A. Brinell in 1900. The Brinell hardness test con- sists in indenting the metal surface with a 10 - mm - diameter steel ball at a load of 3,000 kg . For soft metals the load is reduced to ...
... indentation - hardness test was proposed by J. A. Brinell in 1900. The Brinell hardness test con- sists in indenting the metal surface with a 10 - mm - diameter steel ball at a load of 3,000 kg . For soft metals the load is reduced to ...
Page 284
... indentation . These are shown schemat- ically in cross section through the indentation . in Fig . 11-1 . The sketch at the top illustrates " ridging , " or " piling up , " in which a lip of metal forms around the edge of the impression ...
... indentation . These are shown schemat- ically in cross section through the indentation . in Fig . 11-1 . The sketch at the top illustrates " ridging , " or " piling up , " in which a lip of metal forms around the edge of the impression ...
Page 290
... indentation ; ( b ) pincushion indentation due to sinking in ; ( c ) barreled indentation due to ridging . result of sinking in of the metal around the flat faces of the pyra- mid . This condition is observed with annealed metals and ...
... indentation ; ( b ) pincushion indentation due to sinking in ; ( c ) barreled indentation due to ridging . result of sinking in of the metal around the flat faces of the pyra- mid . This condition is observed with annealed metals and ...
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