1 EFFECT OF IRON PARTICULATES ADDITION ON THE MICROSTRUCTURAL AND MECHANICAL PROPERTIES OF PURE MAGNESIUM S. Sankaranarayanan Department of Mechanical Engineering National University of Singapore, Singapore. R. K. Suraj Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, INDIA U. Pranav Nayak Department of Metallurgical and Materials Engineering, National Institute of Technology Karnataka, Surathkal, Karnataka, INDIA S. Jayalakshmi Department of Mechanical Engineering National University of Singapore, Singapore. Manoj Gupta Department of Mechanical Engineering National University of Singapore, Singapore. Abstract In this study, magnesium material containing 5 wt. % iron (Fe) particulates was synthesized using disintegrated melt deposition (DMD) method followed by hot extrusion. The physical, microstructural, thermal and mechanical properties of developed Mg-5Fe were investigated in comparison with pure Mg. Microstructural studies indicated fairly uniform distribution of Fe particles without intermetallic phases in Mg matrix and significant grain refinement. CTE and hardness measurements showed that the addition of Fe particulates to Mg leads to an improvement in dimensional stability and microhardness. Tensile properties characterization revealed a simultaneous improvement in strengths (by ~ 30 %) and ductility (by ~ 40 %) due to Fe particulates. An attempt is made in the present study to correlate the effect of Fe particle addition as reinforcement with the microstructural and mechanical properties of pure magnesium. Keywords: Magnesium, Metallic reinforcement addition, Mechanical properties.