Abstract
Abstract In this study, the multi-walled carbon nanotubes (MWCNTs) reinforced Mg-6Zn matrix composite was fabricated via powder metallurgy followed with aging treatment, and the thermal as well as mechanical properties of the composite were evaluated. Microstructural characterization revealed that MWCNTs were uniformly distributed in the composite, and a partially inserted (PI) interface was found between Mg matrix and MWCNTs. After aging treatment, a large number of β 1 ′ phases, which had a high coherent relationship with Mg matrix, precipitated and greatly weakened the lattice distortion of Mg matrix. Besides, MWCNTs restrained the growth of the β 1 ′ phase and refined it during aging process. The property evaluation indicated that the thermal conductivity, tensile yield strength and ultimate tensile strength of the Mg-6Zn/0.4MWCNTs composite after aging were 140.7 W/(m·K), 267 MPa and 342 MPa, respectively, showing 17%, 47% and 20% increasing in comparison with those of Mg-6Zn alloy. The significant enhancement of thermal and mechanical properties were mainly attributed to the uniformly distributed MWCNTs with strong PI interface and the MWCNTs induced regulated precipitation of β 1 ′ phase.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
