Microstructural characterization of the matrix in the SiC fiber-reinforced Ti-15-3 composite
- Univ. of Tokyo (Japan). Inst. of Industrial Science
SiC(SCS-6) fiber-reinforced Ti alloy matrix composites have received special attention because of their high specific stiffness and strength, and they are expected to be used in aerospace structural applications. Studies have indicated that the mechanical properties of the composites depend significantly on the properties of fiber, matrix, and interface, which are associated with their microstructures. The microstructures of both the fiber and the interfaces have been studied extensively; however, details of the microstructure of the matrix are not yet known. Some studies revealed that a {beta}-depleted matrix zone existed around the fiber, and a volume change occurred in the matrix by phase transformation during heat treatment of the composite. In addition, the interface reaction behavior strongly depended on interdiffusion of both silicon and carbon from the SiC fiber to the matrix and of titanium in the opposite direction. These behaviors have considerable effects on the mechanical performance of the composites. Thus, it is important to understand the details of the microstructure of the Ti matrix. The present study is focused on the investigation of the microstructure of the Ti matrix in the SiC(SCS-6) fiber-reinforced Ti-15-3 alloy matrix composite.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 611596
- Journal Information:
- Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 2 Vol. 29; ISSN 1073-5623; ISSN MMTAEB
- Country of Publication:
- United States
- Language:
- English
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