TY - JOUR
T1 - Simultaneously enhancing the strength and ductility in titanium matrix composites via discontinuous network structure
AU - Lu, Jinwen
AU - Dong, Longlong
AU - Liu, Yue
AU - Fu, Richard
AU - Zhang, Wei
AU - Du, Yu
AU - Zhang, Yusheng
AU - Zhao, Yongqing
PY - 2020/9/1
Y1 - 2020/9/1
N2 - In this study, titanium matrix composites reinforced with graphene nanoplates (GNPs) were successfully prepared via an in-situ processing strategy. Both TiC nanoparticles and TiC@GNPs strips are in-situ formed at the grain boundaries, and enhance interfacial bonding strength between GNPs and Ti matrix by acting as rivets in the microstructure. The GNPs can be retained in the center of TiC layer, which provides a shielding protection effect for the GNPs. These in-situ formed TiC nanoparticles are linked together to form a discontinuous and three-dimensional (3D) network structure. Due to the formation of 3D network architecture and improved interfacial bonding, the composites show both high strength and good ductility. The significant strengthening effect reinforced by the GNPs can be attributed to a homogeneous distribution of in-situ formed TiC nanoparticles and TiC@GNPs strips, resulting in TiC interface/particle strengthening and excellent interfacial load transfer capability.
AB - In this study, titanium matrix composites reinforced with graphene nanoplates (GNPs) were successfully prepared via an in-situ processing strategy. Both TiC nanoparticles and TiC@GNPs strips are in-situ formed at the grain boundaries, and enhance interfacial bonding strength between GNPs and Ti matrix by acting as rivets in the microstructure. The GNPs can be retained in the center of TiC layer, which provides a shielding protection effect for the GNPs. These in-situ formed TiC nanoparticles are linked together to form a discontinuous and three-dimensional (3D) network structure. Due to the formation of 3D network architecture and improved interfacial bonding, the composites show both high strength and good ductility. The significant strengthening effect reinforced by the GNPs can be attributed to a homogeneous distribution of in-situ formed TiC nanoparticles and TiC@GNPs strips, resulting in TiC interface/particle strengthening and excellent interfacial load transfer capability.
KW - Ti matrix composites
KW - In-situ formation
KW - TiC nanoparticles
KW - Interfacial bonding
KW - TiC@GNPs structure
UR - http://www.scopus.com/inward/record.url?scp=85085203311&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2020.105971
DO - 10.1016/j.compositesa.2020.105971
M3 - Article
SN - 1359-835X
VL - 136
JO - Composites - Part A: Applied Science and Manufacturing
JF - Composites - Part A: Applied Science and Manufacturing
M1 - 105971
ER -