Abstract:The microstructural and mechanical properties, mainly the hardness, tensile properties and impact toughness of two phase Al-20 wt-%Zn alloy subjected to severe plastic deformation via equal channel angular pressing (ECAP) up to two passes, were studied. High cycle fatigue behaviour of ECAP processed alloy was investigated for the first time. The ECAP almost completely eliminated the as cast dendritic microstructure including casting defects such as microporosities and formed a refined microstructure consisting… Show more
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