Abstract: When exposed for the first time to materials engineering, students often ask: "Why study dislocations? Why can't we get an engineering diploma without making this effort?" Such questions did not cross the minds of Taylor, Orowan and Polanyi, the fathers of modern dislocation theory in 1934, when they independently suggested their novel theory of dislocations, following concepts developed by Volterra in 1905. Their basic insights were crucial for the development of the modern science of structure, for the understanding of structural properties and, in particular, for the essential concept of the deformation of materials. A dislocation, due to its extent, is considered to be a line defect and is one of the various types of defects found in materials which determine each and every property of a crystal. Briefly, materials are not perfect and contain a variety of defects. These defects, that determine the properties of a material, are:
Publication Year: 2012
Publication Date: 2012-04-21
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 1013
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