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Title: Reinforcing low-volume fraction nano-tin particulates to monolithical, pure MG for enhanced tensile and compressive response
Authors: Meenashisundaram, G.K 
Nai, M.H 
Almajid, A
Gupta, M 
Keywords: Ceramic materials
Grain refinement
Grain size and shape
Magnesium printing plates
Strengthening (metal)
Tensile strength
Titanium compounds
Volume fraction
X ray diffraction
Compression properties
Disintegrated melt deposition technique
Micro-structural characterization
Strengthening mechanisms
X-ray diffraction studies
Titanium nitride
Issue Date: 2016
Publisher: MDPI AG
Citation: Meenashisundaram, G.K, Nai, M.H, Almajid, A, Gupta, M (2016). Reinforcing low-volume fraction nano-tin particulates to monolithical, pure MG for enhanced tensile and compressive response. Materials 9 (3) : 134. ScholarBank@NUS Repository.
Abstract: Novel Mg (0.58, 0.97, 1.98 and 2.5) vol. % TiN nanocomposites containing titanium nitride (TiN) nanoparticulates of ~20 nm size are successfully synthesized by a disintegrated melt deposition technique followed by hot extrusion. Microstructural characterization of Mg-TiN nanocomposites indicate significant grain refinement with Mg 2.5 vol. % TiN exhibiting a minimum grain size of ~11 ?m. X-ray diffraction studies of Mg-TiN nanocomposites indicate that addition of up to 1.98 vol. % TiN nanoparticulates aids in modifying the strong basal texture of pure Mg. An attempt is made to study the effects of the type of titanium (metal or ceramic), size, and volume fraction addition of nanoparticulates on the microstructural and mechanical properties of pure magnesium. Among the major strengthening mechanisms contributing to the strength of Mg-Ti-based nanocomposites, Hall-Petch strengthening was found to play a vital role. The synthesized Mg-TiN nanocomposites exhibited superior tensile and compression properties indicating significant improvement in the fracture strain values of pure magnesium under loading. Under tensile and compression loading the presence of titanium (metal or ductile phase) nanoparticulates were found to contribute more towards the strengthening, whereas ceramics of titanium (brittle phases) contribute more towards the ductility of pure magnesium. © 2016 by the authors.
Source Title: Materials
ISSN: 19961944
DOI: 10.3390/ma9030134
Appears in Collections:Elements
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