Simulation of microstructural evolution during TMC monotape consolidation processing

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Acta Materialia

DOI:https://doi.org/10.1016/1359-6454(95)00368-1· OSTI ID:271763

Vancheeswaran, R; Elzey, D M; Wadley, H N.G. ^[1]

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1. Univ. of Virginia, Charlottesville, VA (United States). Dept. of Materials Science and Engineering

The consolidation of fiber-reinforced titanium matrix composite (TMC) monotapes produced by spray deposition is an important step in the manufacture of TMC components. The performance of this class of composites is controlled by fiber-matrix properties and by the composite`s relative density, fiber microbending stress/fracture and by the interfacial reaction layer thickness at the fiber-matrix interface after processing. These three microstructural features evolve during consolidation processing. Models for predicting the microstructure`s dependence upon process conditions (i.e., the time varying pressure and temperature) are combined with consolidation equipment dynamics to simulate the microstructural evolution and to assess the relative processibility of several silicon carbide fiber-titanium alloy matrix systems during their transient consolidation processing. The dependence of the microstructural state upon the material system`s mechanical properties and the monotape`s initial geometry has also been investigated and is used to propose guidelines for the selection of TMC system materials and monotape geometry parameters.

• OSTI ID: 271763
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 6 Vol. 44; ISSN XZ504Y; ISSN 1359-6454
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
36 MATERIALS SCIENCE
CHEMICAL REACTIONS
COMPOSITE MATERIALS
CRACKS
DENSITY
DEPOSITION
FABRICATION
GAS TURBINE ENGINES
INTERFACES
MECHANICAL PROPERTIES
MICROSTRUCTURE
PRESSURE DEPENDENCE
RESIDUAL STRESSES
SILICON CARBIDES
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
TITANIUM ALLOYS