Investigation of structure, mechanical properties and crystallization of aluminum alloys containing aluminum oxide nanoparticles

Abstract

A357 and 6082 aluminum alloys strengthened by aluminum nitride nanoparticles were obtained. The process of crystallization of the A357-0.5 wt% Al2O3 and 6082-0.5 wt% Al2O3 alloys was studied under conditions of varying the cooling rate. The A357 and 6082 aluminum alloy structure and hardness were analyzed for the Al2O3 content from 0 to 1 wt%.

A Brief Review on the Electrical Resistivity Of Aluminium Alloy and its Nanoparticles at Low Temperature

“…0.5 %) when nanoparticles of alumina are introduced. So resistivity will decrease according to [14]. But increment in the consecration of nanoparticles causes a decrease in the grain size consequently resistivity increases.…”

Electron Microscopy Investigations of А356 Alloy Modified with Nanoparticles

“…Alternatively, many researchers worked on improving the wear properties of the cast Al alloys via addition of micro particles, which form after solidification so-called micro composite structure [29][30][31]. In the last 2 decades the idea of using small quantities of nanoparticles (up to 0.1 wt.%) for modification and refining of metallic alloys is being explored by many researchers [32][33][34][35][36][37][38][39][40][41][42]. Some special properties of refractory nanoparticles, like high area/volume ratio in the particles size range from 1 to 100 nm as well as very high melting temperature, are considered as promising for their behavior when introduced in a molten metal.…”