Searching for the superior solution to the population-based optimization problem: Processing of the wear resistant commercial AA6061 AMCs

Abstract

In this present work, stir casting technique was used to fabricate aluminum matrix composites with varying weight percentages of SiC (5, 10 and 15) reinforcements. The proper selection of process parameter such as pouring temperature, stirring speed, stirring time and pre-heat temperature of reinforcement can all influence the quality of the fabricated composites. The porosity level of composite should be minimized and the chemical reaction between reinforcement and matrix should be avoided. Optimization is an applied science which explores the best values of the parameters of a problem that may take under specified conditions. The execution of an optimized stir casting technique yields relatively homogenous and fine microstructure which improves the addition of reinforcement material in the molten metal. The influence of SiC content, SiC size and secondary mechanical processing with different rolling reductions on the dry sliding wear characteristics of Al matrix composites has been assessed using a pin-on-disc wear test. The porosity and hardness of the resultant composites were also examined.

A Review of Application of Machine Learning in Design, Synthesis, and Characterization of Metal Matrix Composites: Current Status and Emerging Applications

“…Finally, in a number of previous papers on metal manufacturing, several optimization techniques, such as the genetic algorithm, [131][132][133][134] particle swarm optimization, 46,135 Bayesian optimization, [136][137][138] and even statistical approaches like response surface methodology, 17,139,140 Taguchi's design of experiment, and analysis of variance (ANOVA), [141][142][143] have been used. The main difference between these methods and the RL is that the former do not ''learn from experience.''…”

Squeeze casting of electromagnetically stirred aluminum matrix nanocomposites in semi-solid condition using hybrid algorithm optimized parameters

“…If an element of velocities exceeds the threshold V min or V max , it is set equal to the corresponding threshold [51]. The iterative PSO approach can be described as follows: 1.…”

The influence of the casting method on mechanical properties of A356-Al2O3 nanocompositeEffect of boron addition on microstructure and toughness of Ti-containing weld metals

“…Another requirement is that the porosity and chemical reactions between the reinforcing particles and the metal matrix should be minimized [36][37][38]. During the solidification of the matrix alloy, the particles in the melt can move towards or away from the solidification front.…”