TY - JOUR
T1 - Achieving high strength-ductility in TiBw-GNPs/Ti6Al4V composites via 3D interface configuration
AU - Ren, Weijia
AU - Zhang, Wei
AU - Zhou, Shiqi
AU - Zhou, Qihang
AU - Wei, Jiarui
AU - Wu, Pengfei
AU - Liu, Mabao
AU - Wang, Xianhui
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2024/1/15
Y1 - 2024/1/15
N2 - Strong interface bonding is critical to achieve the graphene nanoplates reinforced titanium matrix composites (GNPs/TMCs) with excellent strength and ductility. In this study, the TiBw-GNPs/Ti6Al4V composites with three-dimensional (3D) interface configuration are fabricated through the combination of vibration milling and the spark plasma sintering (SPS). The 3D interface configuration is constructed by the in-situ generated TiB whiskers (TiBw) together with the sandwiched TiC-GNPs-TiC, in which TiBw grow epitaxially into the adjacent Ti6Al4V grains and immobilize TiC-GNPs-TiC. As a result, 1.5 wt%TiBw-GNPs/Ti6Al4V composite exhibit simultaneously improved yield strength, ultimate strength and ductility, manifesting marked increments of 26.5%, 26.4% and 30.1% compared to GNPs/Ti6Al4V composite, respectively. The strengthening enhancement of TiBw-GNPs/Ti6Al4V composites can be mainly attributed to the constructed 3D interface microstructure, which boosts the interface bonding and promotes grain refinement as well as load transfer. Moreover, the equiaxed α-Ti phase and the deformation compatibility gifted from the tailored interface endow the TiBw-GNPs/Ti6Al4V composites with excellent ductility. This strategy of tailoring 3D interface configuration could pave a promising way to obtain robust interfacial bonding and break through the strength-ductility trade-off in graphene reinforced titanium matrix composites.
AB - Strong interface bonding is critical to achieve the graphene nanoplates reinforced titanium matrix composites (GNPs/TMCs) with excellent strength and ductility. In this study, the TiBw-GNPs/Ti6Al4V composites with three-dimensional (3D) interface configuration are fabricated through the combination of vibration milling and the spark plasma sintering (SPS). The 3D interface configuration is constructed by the in-situ generated TiB whiskers (TiBw) together with the sandwiched TiC-GNPs-TiC, in which TiBw grow epitaxially into the adjacent Ti6Al4V grains and immobilize TiC-GNPs-TiC. As a result, 1.5 wt%TiBw-GNPs/Ti6Al4V composite exhibit simultaneously improved yield strength, ultimate strength and ductility, manifesting marked increments of 26.5%, 26.4% and 30.1% compared to GNPs/Ti6Al4V composite, respectively. The strengthening enhancement of TiBw-GNPs/Ti6Al4V composites can be mainly attributed to the constructed 3D interface microstructure, which boosts the interface bonding and promotes grain refinement as well as load transfer. Moreover, the equiaxed α-Ti phase and the deformation compatibility gifted from the tailored interface endow the TiBw-GNPs/Ti6Al4V composites with excellent ductility. This strategy of tailoring 3D interface configuration could pave a promising way to obtain robust interfacial bonding and break through the strength-ductility trade-off in graphene reinforced titanium matrix composites.
KW - Graphene nanoplatelets
KW - Interface configuration
KW - Mechanical properties
KW - Microstructure
KW - Titanium matrix composites
UR - https://www.scopus.com/pages/publications/85176566923
U2 - 10.1016/j.jallcom.2023.172809
DO - 10.1016/j.jallcom.2023.172809
M3 - 文章
AN - SCOPUS:85176566923
SN - 0925-8388
VL - 971
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 172809
ER -