Randle V. Microtexture Determination and Its Applications

Maney Publishing, 2003. - 138 p.A definition of microtexture is: 'a population of crystallographic orientations whose individual components are linked to their location within the microstructure.' The term microtexture also describes any experimental technique used to determine this information. Essentially, a stationary beam of electrons is diffracted by atomic planes in the sampled volume of specimen. Analysis of the resulting diffraction pattern provides crystallographic information which can be related back to its position of origin. An estimated 95% of microtexture determination is by 'electron backscatter diffraction' (EBSD) in a scanning electron microscope (SEM),with the remaining 5% contributed mainly by transmission electron microscopy (TEM) counterparts to EBSD. Microtexture determination is now firmly established as the most comprehensive experimental tool for quantitative characterisation and analysis of microstructure, and is used extensively in both research and industry. For the first time a wealth of information on topics relating to, for example, orientation distribution (texture), processing history, microstructure evolution, interfaces and structure/property links is now routinely accessible.Microtexture analysis can in principle be applied to any crystalline material, subject to suitable specimen preparation. For most cases EBSD is the most appropriate technique; however, for very fine-scale analysis,such as that associated with heavily deformed materials, TEM-based techniques are used.The Technology of Microtexture
Theoretical Aspects of Orientation Determination
Preparation for an EBSD Investigation
Data Collection
Data Processing: Theoretical Aspects and Statistical Distributions
Data Processing: Practical Aspects
Applications, Reporting and Outlook
Appendix: Principal Suppliers of EBSD Equipment