Creep behavior of an alpha-2 and an orthorhombic Tl-based matrix
- Wright Lab., Wright-Patterson AFB, OH (United States). Materials Directorate
- Univ. of Dayton Research Inst., OH (United States)
- Rockwell Science Center, Thousand Oaks, CA (United States)
It has been previously demonstrated that during longitudinal monotonic loading of unidirectionally reinforced composites at elevated temperature, the load is primarily carried by the fibers. Thus, changes in matrix composition, particularly with a given class, should be of secondary importance to longitudinal properties. Thus, the present study emphasizes changes in neat matrix creep response and correlation of such properties with transverse composite creep. Since creep performance is critical for applications under monotonic and/or cyclic loading at elevated temperatures, this study intends to: study the creep performance of an alpha-2 (Ti-24Al-11Nb) and an orthorhombic (Ti-21Al-22Nb) matrix in a microstructural condition, analogous to that produced in the fiber reinforced composite, and determine if a simple model could be used to predict transverse composite creep life from neat matrix data. The materials examined in this study include neat Ti-24Al-11Nb and Ti-21Al-22Nb composites as well as [0]{sub 4}, 35v% SCS-6 reinforced composites of the latter matrix.
- OSTI ID:
- 139977
- Journal Information:
- Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 10 Vol. 29; ISSN 0956-716X; ISSN SCRMEX
- Country of Publication:
- United States
- Language:
- English
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