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|Title:||Microstructural evolution and mechanical properties of Mg composites containing nano-B4C hybridized micro-Ti particulates|
Electron diffraction (electron back scattered diffraction)
Electron microscopy (SEM)
|Source:||Sankaranarayanan, S., Sabat, R.K., Jayalakshmi, S., Suwas, S., Gupta, M. (2014-02-14). Microstructural evolution and mechanical properties of Mg composites containing nano-B4C hybridized micro-Ti particulates. Materials Chemistry and Physics 143 (3) : 1178-1190. ScholarBank@NUS Repository. https://doi.org/10.1016/j.matchemphys.2013.11.019|
|Abstract:||In this work, the microstructural evolution and mechanical properties of extruded Mg composites containing micro-Ti particulates hybridized with varying contents of nano-B4C are investigated, and compared with Mg-5.6Ti. Microstructural characterization showed the presence of uniformly distributed micro-Ti particles embedded with nano-B4C particulates that resulted in significant grain refinement. Electron back scattered diffraction (EBSD) analyses of Mg-(5.6Ti + x-B4C)BM hybrid composites showed that the addition of hybridized particle resulted in relatively more recrystallized grains, realignment of basal planes and extension of weak basal fibre texture when compared to Mg-5.6Ti. The evaluation of mechanical properties indicated improved strength with ductility retention in Mg-(5.6Ti + x-B 4C)BM hybrid composites. When compared to Mg-5.6Ti, the superior strength properties of the Mg-(5.6Ti + x-B4C)BM hybrid composites are attributed to the presence of nano-reinforcements, the uniform distribution of the hybridized particles, better interfacial bonding between the matrix and the reinforcement particles and the matrix grain refinement achieved by nano-B4C addition. The ductility enhancement obtained in hybrid composites can be attributed to the fibre texture spread and favourable basal plane orientation achieved due to nano B4C addition. © 2013 Elsevier B.V. All rights reserved.|
|Source Title:||Materials Chemistry and Physics|
|Appears in Collections:||Staff Publications|
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