Asymmetrical Mechanical Behavior of a Precipitation Hardened Beta Titanium Alloy.
Abstract
Precipitation hardened single crystals of a beta (bcc) Ti - 40 a/0 V + 1.0 a/o Si alloy were deformed in compression at 77K and 298K. The dependence of the yield stress upon aging time at 570C for solutionized and quenched crystals shows two maxima, caused by the formation of silicide precipitates. The orientation dependence of the yield stress and of the active macroscopic slip plane were determined as a function of aging time. The results indicate that the effect of the dislocation core structure on dislocation motion is independent of the presence of precipitates. The results also suggest that matrix hardening is independent of and additive to precipitation hardening. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- AD0774759
Entities
People
- Donald A. Koss
- Steven M. Tuominen
Organizations
- Michigan Technological University