Mechanical properties and phases derived from TiO2 nanopowder inoculation in low carbon steel matrix

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URI: https://hdl.handle.net/11556/4244
ISSN: 1345-9678
DOI: 10.2320/matertrans.M2013073
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2013
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Abstract
The effect of TiO2 nanoparticle addition on mechanical properties of low carbon steel and the phases originated from this inoculation were investigated. Equilibrium phases were estimated by means of thermodynamic modeling and the results were compared with further microscopy characterization. Both techniques confirmed the dissolution of TiO2 nanoparticles in the molten steel which derived in TiN and Ti4C2S2 nanometric reaction products. The formation of these nanometric phases, were found to result in ferrite grain refinement and consequently in the enhancement of mechanical properties. In addition, the formation of these phases led to C and N depletion from the iron matrix and to a continuous yielding behavior in tensile stressstrain curves.
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Inoculation , Liquid metallurgy , Low carbon steel , Nanoparticle , Thermodynamic modeling , General Materials Science , Condensed Matter Physics , Mechanics of Materials , Mechanical Engineering
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journal article
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Amondarain , Z , Arribas , M , Arana , J L & Lopez , G A 2013 , ' Mechanical properties and phases derived from TiO 2 nanopowder inoculation in low carbon steel matrix ' , Materials Transactions , vol. 54 , no. 10 , pp. 1867-1876 . https://doi.org/10.2320/matertrans.M2013073