Couette Rheometry: Direct Analysis vs. Inverse Parameter Determination

Michael Modigell; Lars Pape; Ksenija Vasilic

doi:10.4028/www.scientific.net/SSP.141-143.331

Paper Titles

A Comparison of Measuring Devices Used to Prevent Wall Slip in Viscosity Measurements of Metallic Suspensions
p.307

Predictions of Structure Breakdown, Buildup and Shear Banding in Semisolid Suspensions
p.313

Thixotropic Strength and Thixotropic Criteria in Semi-Solid Processing
p.319

Analysis of Rheological Properties of Steel near Solidus Point Using Gleeble^® Simulator
p.325

Couette Rheometry: Direct Analysis vs. Inverse Parameter Determination
p.331

Reynolds’ Dilatancy and Shear Bands in Semi-Solid Alloys
p.337

The Determination of Semi-Solid Processing Ability Using a Novel Rheo-Characterizer Apparatus
p.343

Functionally Gradient Materials via a Casting Process Involving Partial Solidification
p.349

Controlling the Semisolid Grain Size during Solidification
p.355

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Couette Rheometry: Direct Analysis vs. Inverse Parameter Determination

Abstract:

The direct analysis and the inverse parameter fitting are methods for determination of unknown material parameters in rheometry. In this paper the efficiency of the both methods is examined on the case of a semi-solid alloy. The difference between the obtained material parameters is studied and the necessity of inverse parameter fitting is discussed.