The study of plastic deformation in the crack surrounding in AZ61 alloy

Abstract

This paper deals with the study of effect of microstructure on the development of plastic deformation around the propagating cracks of the magnesium alloy whose corrosion resistance is increased by the addition of 0.5 wt. % Ca. The crack was created during the three-point bending test with slow increase of load. Result of this analysis was that the slip bands and deformation twins were more significant in material after full polyhedrization of grains than in material in as-cast state.

Keywords

• magnesium alloy
• dislocations
• twining
• transcrystalline fracture
• intercrystalline decohesion