Table of Contents
Textures and Microstructures
Volume 12, Issue 1-3, Pages 77-87
http://dx.doi.org/10.1155/TSM.12.77

Toughness and Fatigue Crack Growth Rate of Textured Metals

1CEIT, Centro de Estudios e Investigaciones Técnicas de Guipúzcoa, Apdo. 1555, San Sebastián 20080, Spain
2Faculty of Engineering, University of Navarra, Urdaneta 7, San Sebastián 20006, Spain

Received 15 January 1989

Copyright © 1990 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

The influence of anisotropy of crystallographic origin on both fracture toughness and the rate of stage-II ductile fatigue crack growth in textured metals is discussed in terms of a plane-strain small geometry change solution for plastic non-hardening materials (a Prandtl-type slip-line field solution accounting for anisotropy). Results corresponding to FCC or BCC metals sliding, respectively, on {111} 110 or {110} 111 systems are presented. Remarkable effects of both texture toughening and fatigue crack growth rate anisotropy are predicted. Stronger effects are anticipated in more anisotropic metals (HCP).