Method to Produce Dispersion Strengthened Titanium Alloy Articles with High Creep Resistance.
Abstract
This invention relates to titanium alloys, particularly to dispersion strengthened titanium alloys. The high strength-to-density ratio of titanium makes it a very attractive design choice in energy-efficient high thrust-to- weight gas turbine engines or airframes of modern airplanes. In titanium, the alloying elements tend to stabilize either the low-temperature close-packed hexagonal alpha phase, or the higher temperature allotrope, body-centered cubic beta phase. The important high-temperature properties for aerospace related applications of titanium alloys are: tensile strength, creep, fatigue initiation and fatigue crack propagation resistance, fracture toughness, hot salt stress and corrosion cracking, and oxidation resistance. It is an object of the present invention to provide a method to produce titanium alloy articles having high creep resistance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 25, 1989
- Accession Number
- ADD014293
Entities
People
- Daniel Eylon
- Francis H. Froes
Organizations
- United States Department of the Air Force