Forces B/w Dislocations

11/17/00

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Table of Contents

Forces B/w Dislocations

Intersections of Dislocations

Dislocation Pile-Ups

Grain Boundaries

Figure 16.1. Grains in a metal or ceramic; the cube depicted in each grain indicates the crystallographic orientation of the grain in schematic fashion

Figure 16.2. At the grain boundary, there is a disturbance in the atomic packing.

Tilt and Twist Boundaries

Calculation of the Energy of a Grain Boundary

Role of Grain Boundaries

Figure 16.7. Micrographs showing polycrystalline Tantalum

Figure 16.8 The dependence of strength on grain size for a number of metals and alloys.

Grain Size Measurements

Figure 16.9. Micrographs showing polycrystalline TiC

Author: Dr. Peter N. Kalu