Table of Contents
Textures and Microstructures
Volume 31 (1998), Issue 1-2, Pages 53-84

X-Ray Study of Rolled Single Crystals of Ti–48%Ni–2%Fe Alloy. Part I: Texture Development and Mechanisms of Plastic Deformation

1Moscow Engineering Physics Institute, Kashirskoe shosse 31, Moscow 115409, Russia
2Department of Physical Metallurgy, TU Clausthal, Grosser Bruch 23, ClausthaL-Zellerfeld 38678, Germany

Received 29 July 1998

Copyright © 1998 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Rolled single crystals of the alloy Ti–48%Ni–2%Fe were studied by methods of X-ray diffractometry using a PSD-technique. Single crystals, consisting of the phase B2, were rolled in 11 initial orientations at 350°C with deformation degrees up to ~80%. Texture development in single crystals under rolling was analyzed to determine the acting mechanisms of plastic deformation. Three stable orientations of single crystals were found: {011}011 ,{111}011 and {111}112. It was shown on the basis of texture data, that Ti–Ni single crystals deform by means of combined action of slip in the systems {011}001 and twinning. For the first time, along with twinning in the known systems {114}221 , twinning in the systems {118}441 was revealed. A number of concrete cases was considered to refine the contributions of slip and twinning into reorientation of single crystals depending on their initial orientations as well as to ascertain the interrelation of different mechanisms.