0
Article Tier 2 Sign in to save

Mechanical Properties of ECAP Processed Magnesium Alloy AS21X

Materials science forum 2006 6 citations

AI summary Read the abstract

Magnesium alloys normally exhibit microplastic behavior at low stresses, limiting their use in precision applications; this study tested whether equal channel angular pressing (ECAP) grain refinement could extend the elastic range of the AS21X alloy. Cyclic tensile tests confirmed that ECAP-processed samples showed improved microplastic resistance compared to conventional grain size material.

Typically, magnesium alloys with conventional grain size exhibit microplastic behaviour already at low stresses. This behaviour restricts the technological utilization of these materials. The aim of this study was to investigate whether ECAP can be applied to enlarge the elastic range of AS21X. Cyclic tensile tests at room temperature were carried out to examine the effect of the ECAP induced grain refinement on the elastic properties. The results obtained are compared with the cyclic behaviour of conventional, coarse-grained AS21X. The differences in mechanical properties between the two conditions are discussed.

More Papers Like This

Article Tier 2

Influence of Cyclic Loading on the Internal Friction Measured on Magnesium Alloys AZ31, AZ61 and AZ91

AI summary Read the abstract

This study examined how cyclic loading affects internal friction in magnesium alloys AZ31, AZ61, and AZ91 after homogenization annealing. Researchers found that microplastic deformation processes and energy dissipation varied among the alloy compositions.

Article Tier 2

Modelling microplastic flow in an hpdc Mg-Al alloy

AI summary Read the abstract

This study used a numerical micromechanical model to simulate how microplastic flow (microscale yielding) develops across the cross section of a cast magnesium-aluminum tensile specimen, showing that a softer core yields first and progressively transfers load to a harder outer skin. The model helps predict early deformation in lightweight cast metal components used in automotive and aerospace applications.

Research digests by email

When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.

Email me about

Share this paper