Modelling Consolidation of Ti-6Al-4V / SiC Matrix-Coated Fibre Metal Matrix Composites

Schüler, Svenja; Derby, Brian; Wood, Miriam; Ward‐Close, C.M.

doi:10.4028/www.scientific.net/kem.127-131.351

Cited by 7 publications

(1 citation statement)

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“…The The FEM predictions have been compared with experidifficulty with dilatometers and eddy-current sensors is that ments for foil-fiber-foil and tape-cast monotapes. [118,119] For interpreting the signal to obtain information on densification foil-fiber-foil layups, there is an important influence on the relies on the sample having a simple geometry. consolidation time of interface friction-shear factors, and Stubbs and Dutton [127] have recently developed an ultrathe consolidation time is sensitive to small variations in sonic sensor that is capable of emitting and receiving ultrahipping temperature and material flow properties such as sonic energy at Ͼ900 ЊC and Ͼ150 MPa and can measure strain-rate sensitivity.…”

Section: B 22 Hot Isostatic Pressingmentioning

confidence: 99%

Fundamental aspects of hot isostatic pressing: An overview

Atkinson

Davies

2000

Metall Mater Trans A

615

268

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Hot isostatic pressing (hipping) can be used for upgrading castings, densifying presintered components, consolidating powders, and interfacial bonding. It involves the simultaneous application of a high pressure and elevated temperature in a specially constructed vessel. The pressure is applied with a gas (usually inert) and, so, is isostatic. Under these conditions of heat and pressure, internal pores or defects within a solid body collapse and diffusion bond. Encapsulated powder and sintered components alike are densified to give improved mechanical properties and a reduction in the scatter band of properties.In this article, the basic science of sintering and hipping is summarized and contrasted. The current state of understanding and modeling of hipping is then reviewed. Models can be classified either as microscopic or macroscopic in their approach. In the microscopic approach, the various mechanisms of densification are analyzed in terms of a single particle and its surroundings. In the macroscopic approach, the compact is treated as a continuous medium. In hipping, although the pressure is isostatic, shrinkage is not generally isotropic, particularly if containment is used. However, the shrinkage can now be well predicted, provided that the material and container properties are accurately known.

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Section: B 22 Hot Isostatic Pressingmentioning

confidence: 99%