Startseite Naturwissenschaften Chapter 5.3 Effects of incorporation of rock dust particles to friction stir processed AA7075 on the microstructure and mechanical properties
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Chapter 5.3 Effects of incorporation of rock dust particles to friction stir processed AA7075 on the microstructure and mechanical properties

  • Gopichand Dirisenapu , Laxmanaraju Salavaravu , Lingaraju Dumpala , Pagoti Lokesh und Satyanarayana Mallapu
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Waste Residue Composites
Ein Kapitel aus dem Buch Waste Residue Composites

Abstract

This study used different percentages of rock dust as reinforcement particles in AA7075 (0, 3, 6, 9, 12, and 15 wt%). Rock dust is a by-product of the crushing of rocks used to produce gravel aggregates. This research aims to assess the impact of rock dust reinforcements on mechanical characteristics and aluminum-based surface composites manufactured through friction stir processing (FSP). The rock dust particles are evenly distributed in the aluminum composites from scanning electron microscopic (SEM) observations. The fixed input variables in the FSP are 1,250 rpm tool rotational speed, 45 mm/min tool traverse speed, and 1° tool tilt angle. The output response revealed that adding rock dust particles increases with enhanced wear resistance. The ultimate tensile strength and microhardness enhanced with rock dust particles in the aluminum material, and the impact strength was reduced. The surface morphology of the wear samples was observed using SEM.

Abstract

This study used different percentages of rock dust as reinforcement particles in AA7075 (0, 3, 6, 9, 12, and 15 wt%). Rock dust is a by-product of the crushing of rocks used to produce gravel aggregates. This research aims to assess the impact of rock dust reinforcements on mechanical characteristics and aluminum-based surface composites manufactured through friction stir processing (FSP). The rock dust particles are evenly distributed in the aluminum composites from scanning electron microscopic (SEM) observations. The fixed input variables in the FSP are 1,250 rpm tool rotational speed, 45 mm/min tool traverse speed, and 1° tool tilt angle. The output response revealed that adding rock dust particles increases with enhanced wear resistance. The ultimate tensile strength and microhardness enhanced with rock dust particles in the aluminum material, and the impact strength was reduced. The surface morphology of the wear samples was observed using SEM.

Heruntergeladen am 21.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/9783110766523-008/html
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