Investigation on cold workability behavior and corrosion effect of Mg Sn TiC hybrid metal matrix composites produced through powder metallurgy

Abstract

In recent years Magnesium alloys are one of the most promising alloys for applications that require high strength but lightweight components The workability behavior of Mg Sn TiC hybrid metal matrix composites and their corrosion behaviors during cold upsetting parameters were included in the present investigation The composites of the Magnesium metal matrix were manufactured by powder metallurgy using Tin and Titanium Carbide as reinforcing particles with an aspect ratio of 0 3 and 0 6 by cold or green compaction Two sizes of TiC particles used in this investigation were of 44and#956;m and 2and#956;m TiC s weight proportion ranged from 0 to 20 at an equal interval of 4 Tin s particle size is 45and#956;m and Tin s weight proportion has been managed constantly by 4 The characterization of Mg Sn TiC composites was executed and analyzed from SEM Scanning Electron Microscopy grain structure image analysis X ray Energy Dispersive spectroscopy analysis and assessment from X ray diffraction The comparative investigation has been made on pure Mg Mg Tin and Mg Sn TiC with a varying weight percentage of TiC During cold upsetting deformation test the effective stresses were found to be a greater value than the axial hoop and stress values under the triaxial stress state conditions It was also observed that all the triaxial stresses were increased proportionately with the increased particle size of reinforced TiC and decreased aspect ratio of the prepared specimens The main reason for the incremental value of the triaxial stresses is due to the high degree of densification and decreased height of the pore bed while preparing specimens from green compaction newline