## MECHANICAL METALLURGY |

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Page 59

maximum shear stress reaches a critical value equal to the shearing

in a uniaxial tension test. From Eq. (2-15), the maximum shear stress is given by (

3-7) where a\ is the algebraically largest and <r3 is the algebraically smallest ...

maximum shear stress reaches a critical value equal to the shearing

**yield stress**in a uniaxial tension test. From Eq. (2-15), the maximum shear stress is given by (

3-7) where a\ is the algebraically largest and <r3 is the algebraically smallest ...

Page 60

<ro = ~= [(Ğr, - <r2)2 + (fft - <r3)2 + (a, - <r,)2p (3-12) According to this criterion,

yielding will occur when the differences between the principal stresses

expressed by the right-hand side of the equation exceed the

uniaxial tension, ...

<ro = ~= [(Ğr, - <r2)2 + (fft - <r3)2 + (a, - <r,)2p (3-12) According to this criterion,

yielding will occur when the differences between the principal stresses

expressed by the right-hand side of the equation exceed the

**yield stress**inuniaxial tension, ...

Page 202

Microcracks occur only in regions which have undergone discontinuous

as a result of being loaded through the upper

drops in region C, eventually the fracture

lower ...

Microcracks occur only in regions which have undergone discontinuous

**yielding**as a result of being loaded through the upper

**yield**point. As the temperaturedrops in region C, eventually the fracture

**stress**drops to a value equal to thelower ...

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### Contents

Stress and Strain Relationships for Elastic Behavior | 17 |

Elements of the Theory of Plasticity | 54 |

Plastic Deformation of Single Crystals | 81 |

Copyright | |

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### Common terms and phrases

alloys aluminum angle annealing 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 recrystallization region relationship residual stresses rolling screw dislocations shear stress sheet shown in Fig 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 usually yield point yield strength yield stress