Mg improves the distribution of Al₂O₃ nanoparticles in an Al matrix via solidification

Microstructure and mechanical behavior of Al-xMg/5Al2O3 nanostructured composites

“…The existence of Mg phase proves that the solid solution is not yet completed and it requires more milling time. For x=8 and 12%, only related peaks of Al-Mg phase are observed (without any trace of Mg phase) due to the introduction of Mg atoms is in Al matrix which confirms the completion of alloying process [12][13][14][15][16][17].…”

“…Also the effect of high energy milling on morphology, microstructure and mechanical properties of the individual composite has been studied. Hence, the use of Al-Mg binary substrates has been considered in the production of Al substrate composites [12][13][14][15][16][17].…”

“…The equilibrium solubility of Mg in Al at room temperature has been reported lower [19] than one atomic percentage while, this value can be increase up to 45 atomic percentages for Al-50at%Mg alloy [20]. Further research in this area has proved the formation of intermetallic compounds with 20% Mg and above [12][13][14][15][16][17][18][19][20]. Therefore, the objective of this study is to investigate the effect of various compounds (0, 4, 8 and 12% Mg) which less has been investigated.…”

Dendrite Refinement and Improved Mechanical Properties of SiC/TiC/Al Hybrid Nanocomposites

“…erefore, improved wettability of nanoparticles and aluminum matrix is another problem to be solved. To solve this problem, the method of ultrasonic treatment and stirring casting can be used to add nanoparticles directly to aluminum melt to prepare nanocomposites [7,[12][13][14][15]. Ultrasonic treatment is considered to be an effective measure to destroy the oxide layer of the aluminum matrix, improve the wettability of the reinforcing body particles and the aluminum matrix, and disperse the nanoparticles [2,16].…”

“…A large number of studies have shown aluminum matrix composites with nanoparticles as reinforcements have stronger comprehensive properties than those with micron particles, and the properties will not only enhance the tensile and yield strength of the material but also improve its toughness and plasticity at the same time [7,8,13,14,[30][31][32][33][34][35][36][37][38]. Relevant scholars found that both particle size and shape complexity have a positive effect on the dislocation density at the interface between aluminum matrix and nanoparticles [9,32,33].…”