DISLOCATION DYNAMICS AND FRACTURE PROCESSES IN 2-PHASE TITANIUM ALUMINIDE ALLOYS

Authors
LORENZ U APPEL F WAGNER R
Citation
U. Lorenz et al., DISLOCATION DYNAMICS AND FRACTURE PROCESSES IN 2-PHASE TITANIUM ALUMINIDE ALLOYS, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 234, 1997, pp. 846-849
Citations number
8
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
234
Year of publication
1997
Pages
846 - 849
Database
ISI
SICI code
0921-5093(1997)234:<846:DDAFPI>2.0.ZU;2-S
Abstract
The fracture behaviour of two-phase titanium aluminides was characteri zed by fracture toughness tests performed on chevron-notched three poi nt bending bars. The alloys investigated had compositions and microstr uctures which are currently being considered for engineering applicati ons. The paper considers the effects of microstructure and crack tip p lasticity on the crack growth resistance. The reliability of the mater ials was assessed by ranking toughness data in Weibull plots and consi dering the anisotropy of the crack resistance. (C) 1997 Elsevier Scien ce S.A.