Effect of material and process variability on HIP consolidation of continuous fiber, metal-matrix composites

Journal Article · Sun Jan 15 04:00:00 EST 1995 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/S0956-716X(99)80036-3· OSTI ID:6802553

Zimmer, W H; Nicolaou, P D; Semiatin, S L ^[1]

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1. Wright Lab., Wright-Patterson AFB, OH (United States)

The objective of the present work was to determine the sensitivity of HIP consolidation time for foil-fiber-foil layups to lot-to-lot variations in material flow behavior. To this end, a simple analysis was applied to quantify the dependence of consolidation time on variations in material flow stress and in HIP pressure from one process cycle to another. The analysis was illustrated for the consolidation of metal-matrix composites (MMCs) with two different titanium alloy matrices. The present phenomenological approach parallels the work of Suryanarayanan, et al. who examined the effect of material property variations on the consolidation of monolithic powders. Besides the difference in product form (HIP'ed monolithic powder versus foil-fiber-foil MMC), the earlier work utilized a micromechanical, rather than a phenomenological, approach to assess the levels of uncertainty in predicted HIP process parameters arising from inaccuracies in activation energies, diffusion coefficients, power law creep exponents, etc.

• OSTI ID: 6802553
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 32:2; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
ALLOYS
ALUMINIUM ALLOYS
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
FABRICATION
HOT PRESSING
MATERIALS
MATERIALS WORKING
NIOBIUM ALLOYS
PRESSING
PRESSURE DEPENDENCE
SILICON CARBIDES
SILICON COMPOUNDS
TITANIUM ALLOYS
TITANIUM BASE ALLOYS