An Experimental and Numerical Study of the Microstructural and Mechanical Properties of an Extruded Magnesium Alloy at 450 °C and Varied Strain Rates Center for Advanced Vehicular Systems

Format:

Conference/Event

Author/Creator:

Ma, Ma, author.

Contributor:

Horstemeyer, Mark

Li B.

Luo, Alan

Oppedal, A.L.

Wang, P.T.

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

An extruded Mg-Al-Mn (AM30) magnesium alloy was subjected to uniaxial compression along the extrusion direction (ED) and the extrusion radial direction (RaD) at 450 °C and different strain rates. The microstructure and texture of the AM30 alloy under different deformation conditions were examined. Texture evolution was characterized by electron backscatter diffraction (EBSD). The activity of different deformation modes including twinning were simulated using the visco-plastic self-consistent (VPSC) and the simplistic Sachs polycrystal plasticity models. The results show that the microstructure and the mechanical property of the Mg alloy strongly depend on the strain rate, with twinning activated at strain rates >0.5 s1. Dynamic recrystallization and twinning interacted with each other and affected the final microstructure and mechanical property of the magnesium alloy

Notes:

Vendor supplied data

Publisher Number:

2013-01-0976

Access Restriction:

Restricted for use by site license