Simultaneously enhancing the strength and ductility in titanium matrix composites via discontinuous network structure

Lu, Jinwen, Dong, Longlong, Liu, Yue, Fu, Richard, Zhang, Wei, Du, Yu, Zhang, Yusheng and Zhao, Yongqing (2020) Simultaneously enhancing the strength and ductility in titanium matrix composites via discontinuous network structure. Composites Part A: Applied Science and Manufacturing, 136. p. 105971. ISSN 1359-835X

[img] Text
Composite_Part_A_fianl_version.pdf - Accepted Version
Restricted to Repository staff only until 20 May 2021.
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.

Download (526kB) | Request a copy
Official URL: https://doi.org/10.1016/j.compositesa.2020.105971

Abstract

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.

Item Type: Article
Uncontrolled Keywords: Ti matrix composites, In-situ formation, TiC nanoparticles, Interfacial bonding, TiC@GNPs structure
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: John Coen
Date Deposited: 06 Jul 2020 13:11
Last Modified: 06 Jul 2020 13:15
URI: http://nrl.northumbria.ac.uk/id/eprint/43667

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics