TY - JOUR
T1 - The Effect of TiN-TiB2 on the Microstructure, Wear, and Nanoindentation Behavior of Ti6Al4V-Ni-Cr Matrix Composites
AU - Falodun, Oluwasegun Eso
AU - Oke, Samuel Ranti
AU - Akinwamide, Samuel Olukayode
AU - Ajibola, Olawale Olarewaju
AU - Adebayo, Abdullahi Olawale
AU - Borisade, Sunday Gbenga
AU - Adediran, Adeolu Adesoji
AU - Olubambi, Peter Apata
N1 - Funding Information:
No funds, grants, or other support was received.
Publisher Copyright:
© 2022, ASM International.
PY - 2023/6
Y1 - 2023/6
N2 - The influence of ceramic (TiN and TiB2) particles on the densification, microstructure, wear, and nanoindentation behavior of titanium matrix composites produced by spark plasma sintering was investigated. The results showed that the relative density of the Ti6Al4V-Ni-Cr-matrix composite with TiN and TiB2 was reduced from 99.51 to 95.33%. The microstructural analysis revealed that the reinforcements were dispersed uniformly within the composite, demonstrating the existence of lamellar (α and β phase) and bimodal structures. The average microhardness value gradually increased from 378 to 707 HV0.2, while the coefficient of friction ranged between 0.3 and 0.65. Furthermore, the material resisted the wear mechanism with improved wear resistance. The decreased frictional coefficient exhibited by the reinforced composite might be attributed to the oxide-layer formation, which served as a lubricant reducing friction between the two gliding surfaces of the material. The nanohardness values ranged from 6363.3 to 10,343 MPa, while the reduced-elastic-modulus values varied from 122.9 to 158.93 GPa.
AB - The influence of ceramic (TiN and TiB2) particles on the densification, microstructure, wear, and nanoindentation behavior of titanium matrix composites produced by spark plasma sintering was investigated. The results showed that the relative density of the Ti6Al4V-Ni-Cr-matrix composite with TiN and TiB2 was reduced from 99.51 to 95.33%. The microstructural analysis revealed that the reinforcements were dispersed uniformly within the composite, demonstrating the existence of lamellar (α and β phase) and bimodal structures. The average microhardness value gradually increased from 378 to 707 HV0.2, while the coefficient of friction ranged between 0.3 and 0.65. Furthermore, the material resisted the wear mechanism with improved wear resistance. The decreased frictional coefficient exhibited by the reinforced composite might be attributed to the oxide-layer formation, which served as a lubricant reducing friction between the two gliding surfaces of the material. The nanohardness values ranged from 6363.3 to 10,343 MPa, while the reduced-elastic-modulus values varied from 122.9 to 158.93 GPa.
KW - ceramic particles
KW - microstructure
KW - nanoindentation behavior
KW - spark plasma sintering
KW - titanium alloys
UR - http://www.scopus.com/inward/record.url?scp=85139746791&partnerID=8YFLogxK
U2 - 10.1007/s11665-022-07504-x
DO - 10.1007/s11665-022-07504-x
M3 - Article
AN - SCOPUS:85139746791
SN - 1059-9495
VL - 32
SP - 5566
EP - 5575
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
IS - 12
ER -