Dislocation Science

When you first encounter crystal lattice defects, the one-dimensional dislocations are the most difficult ones to imagine. True, the ubiquitous schematic picture of an edge dislocation is not all that hard to grasp, but everything beyond that gets a bit mind boggling at first.
In contrast, all the other defects- vacancies and interstitials, grain boundaries or precipitates - are far easier to imagine. In reality, all defects hang together; they do not exist in splendid isolation. Dislocations and their interaction with all other defects are central to metallurgy and that's why I will devote several modules to this topic.
1. The Basics, including Volterra's knife and a few equations.
2. The Reality. All the rather weird stuff real dislocations do.
3. Specialties. How dislocations reproduce and so on.
You may a so want to check these modules
  History of dislocations Who invented (or discovered?) dislocations?
    Creep and Fatigue, where creepy or tired dislocations cause big problems.

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go to Invention or Discovery?

go to Defect Etching in Silicon

go to Myths and Bullshit Around Quenching

go to Discovery of Atoms

go to Antique Texts Concerning Iron

go to Magnetism

go to Radiocarbon (C14) Dating

go to Early Copper Sites

go to Creep

go to Diffusion in Iron

go to Heroes of Dislocation Science

go to Dislocation Science - 1. The Basics

go to The Al - Cu System

go to Grain Boundary - Advanced

go to Iron in China

go to Experimental Techniques for Measuring Diffusion Parameters

go to Phenomenological Modelling of Diffusion

go to Twinning, Shear Deformation and Martensite Formation

go to Göbekli Tepe

go to Cayönü Tepesi

go to Size and Density of Precipitates

go to Fatigue

go to Displacement and Strain

go to The Story of Self-Interstitials in Silicon

go to Atomic Mechanisms of Diffusion

go to Making Vacancies

go to Asikli Höyük

go to Copper Ores

go to Hallan Çemi Tepesi

go to 1. Basics of Segregation

go to Jericho

go to 5.3.3 Stacking Faults

go to Thermal Stress

go to Homogeneous Nucleation

go to Dislocation Science - 2. The Reality

go to Dislocation Science - 3. Specialities

go to 5.4.1 The dislocation

go to Sword Places

go to The Cyprus Copper and Bronze Industry

go to Early Iron sites

go to Pictures of Grain Boundaries

go to Deformation Types

© H. Föll (Iron, Steel and Swords script)