TY - JOUR
T1 - Microstructure and biocorrosion studies of spark plasma sintered yttria stabilized zirconia reinforced Ti6Al7Nb alloy in Hanks' solution
AU - Msweli, Nondumiso Prudence
AU - Akinwamide, Samuel Olukayode
AU - Olubambi, Peter Apata
AU - Obadele, Babatunde Abiodun
N1 - Publisher Copyright:
© 2022 The Authors
PY - 2023/1/1
Y1 - 2023/1/1
N2 - A study of spark plasma sintered Ti6Al7Nb alloy reinforced with yttria stabilized zirconia (YSZ) has been carried out to assess the biocorrosion response in Hank's solution. The results indicate that the microstructural changes resulting from YSZ addition to Ti6Al7Nb were considerably different from pure Ti6Al7Nb. All the Ti6Al7Nb + YSZ composites showed a higher Vickers microhardness value with Ti6Al7Nb + 10%YSZ exhibiting the most enhanced hardness value of 955.3 HV0.1. Furthermore, all Ti6Al7Nb + YSZ present higher corrosion resistance in Hank's solution than Ti6Al7Nb alloy except Ti6Al7Nb + 1YSZ which shows a significant drop in Ecorr and Icorr values. This could be due to grain refinement with less stable oxide film growth kinetics. The combination of mechanical property and corrosion resistance of the fabricated Ti6Al7Nb + YSZ alloy could make it a suitable material for dental implant in the nearest future.
AB - A study of spark plasma sintered Ti6Al7Nb alloy reinforced with yttria stabilized zirconia (YSZ) has been carried out to assess the biocorrosion response in Hank's solution. The results indicate that the microstructural changes resulting from YSZ addition to Ti6Al7Nb were considerably different from pure Ti6Al7Nb. All the Ti6Al7Nb + YSZ composites showed a higher Vickers microhardness value with Ti6Al7Nb + 10%YSZ exhibiting the most enhanced hardness value of 955.3 HV0.1. Furthermore, all Ti6Al7Nb + YSZ present higher corrosion resistance in Hank's solution than Ti6Al7Nb alloy except Ti6Al7Nb + 1YSZ which shows a significant drop in Ecorr and Icorr values. This could be due to grain refinement with less stable oxide film growth kinetics. The combination of mechanical property and corrosion resistance of the fabricated Ti6Al7Nb + YSZ alloy could make it a suitable material for dental implant in the nearest future.
KW - Biomedical
KW - Dental implant
KW - Potentiodynamic polarization
KW - Ti6Al7Nb
KW - Yttria stabilized zirconia
UR - http://www.scopus.com/inward/record.url?scp=85140465068&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2022.126940
DO - 10.1016/j.matchemphys.2022.126940
M3 - Article
AN - SCOPUS:85140465068
SN - 0254-0584
VL - 293
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 126940
ER -