Abstract
AlCrFeNi high-entropy alloy (HEA) reinforced with 4%wt TiO2 was fabricated through mechanical alloying (MA) followed by Field Assisted Sintering Technique (FAST) at 1100 °C temperature, 50 MPa pressure and 10 mins holding time, with subsequent investigation into FAST-induced powder deformation, microstructure, wear, and corrosion properties. TiO2 slowed down powder deformation during FAST of the AlCrFeNi, reducing density by 0.8%. The microstructure consisted of (Fe, Cr)-enriched BCC and (Al, Ni)-rich B2 phases, with the even distribution of a dark TiO2 phase in the AlCrFeNi HEA. The composite exhibited enhanced properties, including a high indentation resistance of 679 HV. The resistance to corrosion of the AlCrFeNi-TiO2 composite exhibited a substantial enhancement, as evidenced by a significant reduction in the corrosion current density (Icorr). Additionally, the wear tests unveiled improved tribological behavior in the composite, characterized by reduced friction coefficients (CoF) and wear rates. The wear mechanism was abrasive in the alloy and adhesive in the composite.
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.
