This paper attempts to investigate the influence of the microstructure and mechanical property changes on sand casting and permanent die casting alloys by grain refinement, modification combined action of both (Al– 3Ti–1B + Al–10Sr) and without grain refinement and modification effect. The microstructures of the castings are studied by optical microscopes. The microstructure and mechanical prop...

Two widely used jewellery investment casting alloys (platinum with 5 wt% ruthenium (Pt-5Ru) and platinum with 5 wt% cobalt (Pt-5Co)) suffer from poor castability and other drawbacks. In this work thermodynamic calculations of alloy properties were employed to optimise the alloy compositions. Segregation behaviour appeared to be important for the melting range. Scheil simulations were used to si...

Currently, much of the software that we would like to run fast on multi-core processors is written in C — a language in which expressing concurrency is difficult and error prone. Unfortunately, moving such programs to a new language is very difficult, since the programmers only know C, the tools only know C, and developers are unkeen to trust their projects to a language that might not be suppo...

A full scale physical model of a thin slab caster with a four-hole design submerged entry nozzle (SEN) was constructed. On the basis of the dimensionless Reynolds and Froude similitude criteria, the fluid flow in a full-scale model is similar to that of the actual system and, hence, the data obtained from the water model can be applied to the actual system. In order to determine the optimum ope...

Abstract: structures in alloys. This method is based on pouring the melt through a small sized nozzle into a mould located at acertain height under the crucible. This simple method generates globular structures without using equipments such asimpellers, electromagnetic stirrers, ultrasonic probes and cooling slopes. Therefore it is cost effective. In the presentstudy, the effect of casting size...

The synthesis of agro-waste reinforced metal matrix composites is now very common among researchers because their cost effectiveness, excellent properties and wide industrial applications. This study synthesized a hybrid aluminium 6061 composite with particulates silicon carbide, SiCp carbonized coconut shell, CCSP as reinforcement combined in the ratio 1:1, determined effect combining CCSp rei...

Particle-based computational methods, such as the Smoothed Particle Hydrodynamics (SPH) method, do not require a numerical mesh. Because of the mesh-less characteristics, they are suitable for the numerical simulation of the casting process. In order to optimize the production condition, the simulation of the semi solid casting by the particle method is expected to be applicable. In the semi so...