Evaluation of microtexture using x-ray pole figures obtained from single grains

Natalia Yu. Ermakova; Nikolai Yu. Zolotorevskii; V. R. Mirsoev; Yuri F. Titovets

doi:10.1117/12.347453

5 May 1999 Evaluation of microtexture using x-ray pole figures obtained from single grains

Natalia Yu. Ermakova, Nikolai Yu. Zolotorevskii, V. R. Mirsoev, Yuri F. Titovets

Proceedings Volume 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (1999) https://doi.org/10.1117/12.347453
Event: International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 1998, St. Petersburg, Russian Federation

Abstract

The method is described which enables to determine microtexture, that is orientation distribution within individual grains of polycrystal. The microtexture is evaluated on the base of X-ray pole distributions measured for separate reflections, referred to as microscopic pole figures (MPF). The procedure for treatment of experimental MPF and the following computation of orientation distribution function is described in detail. The precision of the microtexture evaluation and possible ways of its improvement are discussed. As an example of the method application, orientation distribution within a single grain of aluminum polycrystal deformed by uniaxial compression up to 32% has been examined. Mean rotation of the grain lattice differs from that predicted theoretically. Furthermore, the orientation spread inside the grain develops with increasing plastic strain, that is of the same order of magnitude that the mean grain rotation.

Citation Download Citation

Natalia Yu. Ermakova, Nikolai Yu. Zolotorevskii, V. R. Mirsoev, and Yuri F. Titovets "Evaluation of microtexture using x-ray pole figures obtained from single grains", Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); https://doi.org/10.1117/12.347453

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