Abstract
The present study focuses on investigating the effects of Nickel-Titanium (NiTi) nanoparticles on the microstructure and properties of pure Mg. Mg composites containing varying weight percentages (0.5, 1, 1.5, 3) of NiTi nanoparticles were fabricated using Disintegrated Melt Deposition (DMD), followed by hot extrusion. The synthesized materials were characterized in order to investigate their physical, microstructural and mechanical properties. Synthesized materials were characterized for their density and porosity levels, microstructural characteristics, and mechanical response. Superior grain refinement was realized by the presence of NiTi nanoparticles in the magnesium matrix. The addition of NiTi nanoparticles resulted in strength property enhancements of pure Mg with minimal adverse effect on the ductility. Structure-property evaluations are detailed in the current study.
Highlights
Magnesium (Mg) is a non-ferrous, alkaline earth metal found in Group II of the periodic table and it is one of the lightest engineering metals (33% lighter than aluminum) with a density of approximately1.74 g/cc [1]
The Disintegrated Melt Deposition (DMD) technique has been successfully used to synthesize a wide range of magnesium-based composites [13,14,15,16]
The present study was conducted with the prime objective to investigate the mechanical properties of magnesium composites containing NiTi nanoparticles in different amounts (0.5, 1, 1.5, 3 wt. %)
Summary
Magnesium (Mg) is a non-ferrous, alkaline earth metal found in Group II of the periodic table and it is one of the lightest engineering metals (33% lighter than aluminum) with a density of approximately. The DMD technique has been successfully used to synthesize a wide range of magnesium-based composites [13,14,15,16]. Recent studies on DMD fabricated Mg nanocomposites with different reinforcements (SiC, B4 C, SiO2 , TiO2, Al2 O3 and so on) have reported superior enhancement in the mechanical and ignition properties of magnesium in the presence of nanoparticles [1,9,18,19,20,21,22,23]. The present study was conducted with the prime objective to investigate the mechanical properties of magnesium composites containing NiTi nanoparticles in different amounts Physical, mechanical, and microstructural characterization tests were conducted, which include density and porosity measurements, optical and scanning electron microscopy examinations, tensile tests, compression tests and fracture studies of tensile and compressive failed samples
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