aluminum base composite materials with variable properties which have been strengthened by alb 2 particles have been widely used. in this study, composites with variable properties of al-5%b and al-2%mg-2%b which are produced through centrifugal casting are investigated as far as their microstructure and hardness are concerned. the microstructure of these composite were studied by using metallo...

In order to improve the structural stiffness of gravure cell structure in solid printing process and realize a lightweight design, multi-objective optimization design method was proposed optimize parameters direct laser engraving structure. this paper, based on characteristics analysis contact force, ANSYS parametric language (APDL) used conduct finite element microstructure regular hexagonal c...

Materials design calls for the (inverse) exploitation of Process-Structure-Property (PSP) relationships to produce materials with targeted properties. Unfortunately, most frameworks are not optimal, given resource constraints. Bayesian Optimization (BO)-based increasingly used in as they balance exploration and spaces. Most BO-based assume that space can be queried by a single information sourc...

From numerical point of view, analysis and optimization in computational material engineering require efficient approaches for microstructure representation. This paper develops an approach to establish an image-based interpolation model in order to efficiently parameterize microstructures of a representative volume element (RVE), based on proper orthogonal decomposition (POD) reduction of dens...

1 I n t r o d u c t i o n The optimal topology design of structures has become a subject that calls for more and more attention of researchers and engineers in the f ie ldof structural optimization recently. Bends¢e and Kikuchi (1988) introduced a Homogenization Based Optimization (HBO) method for finding optimal structures without the requirement of conjecturing the initial topologies. This me...

Although superior high temperature tensile yield strength of entropy superalloys (HESAs) arises from their hierarchical microstructure, the precipitation processes driving its formation remains unclear. In present study, we analyze kinetics ?’ and ? precipitations by treating concurrent nucleation, growth coarsening using common computational thermodynamic kinetic tools to simulate microstructu...

Microstructure reconstruction is an important cornerstone to the inverse materials design concept. In this work, a general algorithm developed reconstruct three-dimensional microstructure from given descriptors. Based on two-dimensional (2D) micrographs, allows valuable insight through spatial visualization of and in silico studies structure-property linkages. The formulation ensures computatio...

In the present study, an ultrafine grained (UFG) 304L stainless steel with the average grain size of 300 nm was produced by a combination of cold rolling and annealing. Weldability of the UFG sample was studied by Nd: YAG laser welding under different welding conditions. Taguchi experimental design was used to optimize the effect of frequency, welding time, laser current and laser pulse duratio...