## 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. |

### From inside the book

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Page 248

M

material as a function of the size of the microcrack. Note that this

indicates that the fracture stress is inversely proportional to the square root of the

crack ...

M

**Equation**(7-15) gives the stress required to propagate a crack in a brittlematerial as a function of the size of the microcrack. Note that this

**equation**indicates that the fracture stress is inversely proportional to the square root of the

crack ...

Page 260

When the left side of the

fracture can be produced at a shear stress equal to the yield stress. Thus, this

When the left side of the

**equation**is greater than the right, a propagating brittlefracture can be produced at a shear stress equal to the yield stress. Thus, this

**equation**describes a ductile-to-brittle transition. Since many of the metallurgical ...Page 306

8-9 CONSTITUTIVE

between stress and strain in terms Of the variables of strain rate and temperature.

The simple power-law relationship (Eq. 8-21) and its variants are elementary ...

8-9 CONSTITUTIVE

**EQUATIONS**Constitutive**equations**describe the relationsbetween stress and strain in terms Of the variables of strain rate and temperature.

The simple power-law relationship (Eq. 8-21) and its variants are elementary ...

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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