## Mechanical metallurgy |

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Page 297

modern testing machine in which the crosshead velocity can be set accurately

and controlled, it is a simple matter to carry out tension tests at

conventional strain rate. The true strain rate e is given by de d[ln(L/L0)] 1 dL v h -

1 V ' °n ...

modern testing machine in which the crosshead velocity can be set accurately

and controlled, it is a simple matter to carry out tension tests at

**constant**conventional strain rate. The true strain rate e is given by de d[ln(L/L0)] 1 dL v h -

1 V ' °n ...

Page 383

12-6a the maximum stress is plotted against log N for

stress ratio R = amin/amax. This is achieved by applying a series of stress cycles

with decreasing maximum stress and adjusting the minimum stress in each case

so ...

12-6a the maximum stress is plotted against log N for

**constant**values of thestress ratio R = amin/amax. This is achieved by applying a series of stress cycles

with decreasing maximum stress and adjusting the minimum stress in each case

so ...

Page 438

13-3 THE CREEP CURVE The progressive deformation of a material at

stress is called creep. To determine the engineering creep curve of a metal, a

13-3 THE CREEP CURVE The progressive deformation of a material at

**constant**stress is called creep. To determine the engineering creep curve of a metal, a

**constant**load is applied to a tensile specimen maintained at a**constant**...### What people are saying - Write a review

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### Contents

Stress and Strain Relationships for Elastic Behavior | 18 |

from Elastic Strains 213 Strain Energy 214 Anisotropy | 46 |

Metallurgical Fundamentals | 101 |

Copyright | |

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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 determined diameter direction dislocation line ductile edge dislocation elastic elongation embrittlement energy engineering equation extrusion factor failure fatigue limit fiber Figure flow curve flow stress force forging friction given grain boundaries hot-working hydrostatic increase indentation lattice length load machining martensite material matrix maximum measured mechanical metallurgical Metals Park modulus necking 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 specimen steel strain hardening strain rate stress-strain curve structure surface temperature tensile strength tensile stress tension test tensor thickness tool torsion Trans usually velocity workpiece yield strength yield stress