## Mechanical metallurgy |

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Page 12

Fatigue failure occurs without any visible sign of yielding at nominal or average

stresses that are well below the

caused by a critical localized

...

Fatigue failure occurs without any visible sign of yielding at nominal or average

stresses that are well below the

**tensile strength**of the metal. Fatigue failure iscaused by a critical localized

**tensile stress**which is very difficult to evaluate, and...

Page 238

(9-2) Since both the stress and the strain are obtained by dividing the load and

elongation by constant factors, the ... The parameters which are used to describe

the stress- strain curve of a metal are the

(9-2) Since both the stress and the strain are obtained by dividing the load and

elongation by constant factors, the ... The parameters which are used to describe

the stress- strain curve of a metal are the

**tensile strength**, yield strength or yield ...Page 261

shear stress to

and the notch depth. d2 Notch depth = 1 — The notch strength is denned as the

maximum load divided by the original cross-sectional area at the notch.

shear stress to

**tensile stress**. A notch is characterized by the notch sharpness a/rand the notch depth. d2 Notch depth = 1 — The notch strength is denned as the

maximum load divided by the original cross-sectional area at the notch.

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### Contents

Introduction | 3 |

Stress and Strain Relationships for Elastic Behavior | 17 |

Elements of the Theory of Plasticity | 54 |

Copyright | |

21 other sections not shown

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### Common terms and phrases

alloys angle annealing ASTM axis behavior bending billet brittle fracture Burgers vector cent compressive constant crack creep rate cycles decrease determined diameter direction dislocation line distribution drawing ductile edge dislocation effect elastic 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 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 tension theory thickness tion torsion Trans transition temperature tube usually yield strength yield stress