Table of Contents
Textures and Microstructures
Volume 32 (1999), Issue 1-4, Pages 341-353
http://dx.doi.org/10.1155/TSM.32.341

Influence of the Texture on Mechanical Properties of the Al-Li Alloy 1441

1A.A. Baikov Metallurgy Institute of Russian Academy, Leninskii prospect 49, Moscow 117911, Russia
2All-Russian Institute of Aviation Materials, Moscow, Russia

Accepted 28 September 1997

Copyright © 1999 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.

Abstract

Results of texture investigations in sheet and plate of the Al–Li alloy 1441 are presented. The peculiarities of fracture surface morphology formation during fatigue crack propagation tests in dependence on texture inhomogeneity are considered. The deviation of the fatigue crack from the principal direction in center-notched specimens could be related to occurrence of a {110} 112 texture. The formation of crystallographic faceted fracture surfaces results from cracks extending by slip along equally shear stressed {111} 110 slip systems ahead of the crack tip.