## Mechanical MetallurgyThis revised third edition of a bestselling metallurgy text examines the behavior of materials under stress and their reaction to a variety of hostile environments. It covers the entire scope of mechanical metallurgy, from an understanding of the continuum description of stress and strain, through crystalline and defect mechanisms of flow and fracture, and on to a consideration of major mechanical property tests and the basic metalworking process. It has been updated throughout, SI units have been added, and end-of-chapter study questions are included. |

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Page 150

It has already been shown that for a pure edge dislocation the

perpendicular to the dislocation line, while for a pure screw dislocation the

by the ...

It has already been shown that for a pure edge dislocation the

**Burgers vector**isperpendicular to the dislocation line, while for a pure screw dislocation the

**Burgers vector**is parallel to the dislocation line. The macroscopic slip producedby the ...

Page 153

The exception is at a node, where three or four dislocation lines meet. At a node

two dislocations with

dislocation b3. The vector b3 is given by the vector sum of b1 and b2. Since the ...

The exception is at a node, where three or four dislocation lines meet. At a node

two dislocations with

**Burgers vectors**b1 and b2 combine to produce a resultantdislocation b3. The vector b3 is given by the vector sum of b1 and b2. Since the ...

Page 170

Because the

is free to slip on any plane which contains the dislocation line and the

to ...

Because the

**Burgers vector**of a screw dislocation is parallel to the dislocation, itis free to slip on any plane which contains the dislocation line and the

**Burgers****vector**. No diffusion of atoms is needed to allow the screw dislocation to move onto ...

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### Contents

Stress and Strain Relationships for Elastic Behavior | 17 |

of Stress in Two Dimensions Plane Stress 24 Mohrs Circle | 35 |

from Elastic Strains 213 Strain Energy 214 Anisotropy | 62 |

Copyright | |

19 other sections not shown

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### Common terms and phrases

alloy angle annealed ASTM atoms axis behavior billet brittle fracture Burgers vector cold-worked components compression constant crack creep cycles decrease deﬁned determined diameter direction dislocation line ductile edge dislocation elastic elongation embrittlement energy engineering equation extrusion factor failure fatigue limit ﬁbers ﬁeld Figure ﬁne ﬁnish ﬁrst ﬂat ﬂow curve ﬂow stress force forging friction given grain boundaries hot-working hydrostatic increase inﬂuence lattice length load machining martensite material matrix maximum measured mechanical metallurgical Metals Park modulus necking normal notch occurs particles percent plane strain plane-strain plastic deformation plastic strain pressure produce properties ratio recrystallization reduction region residual stresses rolling screw dislocation shear stress sheet shown in Fig slip plane slip systems Society for Metals speciﬁc specimen steel strain hardening strain rate stress-strain curve structure surface temperature tensile stress tensor thickness tool torsion Trans usually velocity workpiece yield strength yield stress