Hydrogen-assisted fatigue crack growth in beta-annealed Ti-6Al-4V
Journal Article
·
· Scripta Materialia
- Naval Research Lab., Washington, DC (United States)
In the present study, the effect of internal hydrogen on beta-annealed Ti-6Al-4V subjected to a very small amplitude fatigue loading (a cyclic amplitude equal to 5% of the maximum load or a stress ratio, R, of 0.90) was determined. The fatigue crack growth rates and fatigue crack growth threshold stress intensities were determined and compared for beta-annealed Ti-6Al-4V with hydrogen contents of 40 ppm, 370 ppm, and 1000 ppm. The observed secondary cracking and unique fatigue crack growth kinetics in 1000 ppm hydrogen-charged Ti-6Al-4V are discussed in relation to stress-assisted hydride information in the crack tip region.
- OSTI ID:
- 305409
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 1 Vol. 40; ISSN 1359-6462; ISSN SCMAF7
- Country of Publication:
- United States
- Language:
- English
Similar Records
An investigation of the effects of stress ratio and crack closure on the micromechanisms of fatigue crack growth in Ti-6Al-4V
A. fatigue failure in annealed Ti-6Al-4V microstructures. b. fatugue life in annealed and martensitic Ti-6Al-4V. Technical report
Subcritical crack growth of Ti-6Al-4V at room temperature under high stress-ratio loading
Journal Article
·
Tue Jul 01 00:00:00 EDT 1997
· Acta Materialia
·
OSTI ID:524536
A. fatigue failure in annealed Ti-6Al-4V microstructures. b. fatugue life in annealed and martensitic Ti-6Al-4V. Technical report
Technical Report
·
Fri Aug 01 00:00:00 EDT 1975
·
OSTI ID:7347630
Subcritical crack growth of Ti-6Al-4V at room temperature under high stress-ratio loading
Journal Article
·
Thu Nov 12 23:00:00 EST 1998
· Scripta Materialia
·
OSTI ID:305421