A bird’s-eye view of the historical developments in the area of crystallographic texture of materials has been presented here, with an eye on future developments. The study of textures in geological objects predates investigations in metallic and other materials. The basic question as to how the bulk texture of a polycrystalline material is related to the microstructure has led to the origin of techniques like electron backscattered diffraction. A brief overview of representation of texture through pole figure and orientation distribution function methods has been presented. The relevant developments with respect to both experimental and theoretical advancements together with new innovations in techniques of measurement have been introduced in a historical perspective. With the origin of modern techniques of characterization of macro- and microtexture, the long-lasting debate on the classical theory of texture transition from “copper-type” to “brass-type” has been brought into focus. Finally, the finer aspects of microstructural details, as revealed through electron backscatter diffraction technique, along with newer and modern accessories, have been introduced and the future of materials research with the aid of such techniques has been speculated.

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Crystallographic Texture—Historical Perspective and Modern Developments

  • Ranjit Kumar Ray,
  • Satyam Suwas

摘要

A bird’s-eye view of the historical developments in the area of crystallographic texture of materials has been presented here, with an eye on future developments. The study of textures in geological objects predates investigations in metallic and other materials. The basic question as to how the bulk texture of a polycrystalline material is related to the microstructure has led to the origin of techniques like electron backscattered diffraction. A brief overview of representation of texture through pole figure and orientation distribution function methods has been presented. The relevant developments with respect to both experimental and theoretical advancements together with new innovations in techniques of measurement have been introduced in a historical perspective. With the origin of modern techniques of characterization of macro- and microtexture, the long-lasting debate on the classical theory of texture transition from “copper-type” to “brass-type” has been brought into focus. Finally, the finer aspects of microstructural details, as revealed through electron backscatter diffraction technique, along with newer and modern accessories, have been introduced and the future of materials research with the aid of such techniques has been speculated.