Effect of nano TiO2 particles on microhardness and microstructural behavior of AA7068 metal matrix composites
Source abstract
Abstract
Abstract Present work deals with the fabrication of AA7068 composites reinforced with different percentages of Nano TiO 2 (3, 6 and 9 wt%) using powder metallurgy technique along with as sintered AA7068 material. The pressure applied for compacting the composites was 318 MPa and sintered at 560 °C in a sintering furnace for one hour. Vickers micro hardness test have been conducted for finding the microhardness. Optical Microscopy was carried out to analyze the microstructural behavior. The worn surface was investigated by the Field Emission Scanning Electron Microscope (FESEM) after the wear test. The microhardness was found to increase by increasing the weight percentage of TiO 2 particles. It was observed to be a maximum of 68 VHN by adding 9% Nano TiO 2 particles. Abrasion, oxidation and delamination were the dominant wear mechanisms present in the composites. Energy Dispersive Spectroscopy analysis was done to confirm the presence of the TiO 2 particles.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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