Modelling of Flow Behaviour of Magnesium Alloys

Carlo Bruni

doi:10.4028/www.scientific.net/KEM.716.360

Paper Titles

Investigation of the Unloading Yield Effect in Aluminum and Magnesium Sheet Metal Alloys at Room Temperature
p.331

Investigation of Uniaxial Tensile Properties of AA6082 under HFQ^® Conditions
p.337

Microstructural Evolution of the Magnesium Alloy AZ31 with and without SiC Particles during Ultrasonic Melt Treatment
p.345

Modelling Microstructure Evolution in ATI 718Plus^® Alloy
p.352

Modelling of Flow Behaviour of Magnesium Alloys
p.360

The Onset of the Austenite to Bainite Phase Transformation for Different Cooling Paths and Steel Compositions
p.368

Analysis of Material Flow in Oval Upsetting Using Mild-Wedged Die
p.379

Connection Strength of Additive Manufactured Tool Elements to the Substrate
p.389

Design of a Novel End-Effector for Kinematic Support in Incremental Sheet Forming
p.395

HomeKey Engineering MaterialsKey Engineering Materials Vol. 716Modelling of Flow Behaviour of Magnesium Alloys

Modelling of Flow Behaviour of Magnesium Alloys

Abstract:

The present investigation aims at studying the flow behaviour of magnesium alloys under different conditions in terms of temperature, deformation velocities and deformation. The modelling approach was based on a proposed equation to model the shape of each flow curve through different variables. The modelled flow curves were subsequently compared with those obtained with experiments. The models were validated on flow curves not used in the building stage. It was observed that, for low temperature values, high deformation velocities and deformations the final part of the flow curve has to be adapted in order to be adopted for the description of material in the numerical simulation. In other words it needs to be extrapolated. Also for the high temperature, the flow softening has to be limited in order to allow the extrapolation queue required for elevated deformations. The deformation value at which the extrapolation can start can be predicted with an other proposed equation detailed in the paper.

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Periodical:

Key Engineering Materials (Volume 716)

Pages:

360-367

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.716.360

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Online since:

October 2016

Authors:

Carlo Bruni*

Keywords:

Analytical Modelling, Bulk Metal Forming, Flow Curve, Magnesium Alloy

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