Refinement of α-Mg solid solution grains has a significant influence on the improvement mechanical properties cast magnesium alloys. In article, effects three modifiers microstructure and AZ91 alloy casted to sand mould were described. Overheating, hexachloroethane wax-CaF2-carbon powder applied. The research procedure comprised analysis by means light microscopy, scanning electron microscopy quantitative with AnalySIS Pro® software properties’ investigation. in as-cast condition consists...

Magnesium alloys are promising candidates for many structural applications in automotive and aerospace industry.However, due to the low service temperature of majority magnesium alloys, huge efforts made order develop high systems with maximum exploitation up 300 • C. Nevertheless, increase properties is connected application expensive rare earth elements (RE).In paper microstructure Mg-XBi (X = 2, 5, 10) has been investigated.The Mg-Bi system may be an effective substitute Mg-RE ability...

It is well known that the properties of a metal matrix composites depend upon reinforcement phase, and interface. A strong interface bonding without any degradation reinforcing phase one prime objectives in development composites. Therefore, objective this work to characterize structure WE43/SiC particles composite. Magnesium alloys containing yttrium neodymium are have high specific strength, good creep corrosion resistance up 250°C. The addition SiC ceramic strengthens composite resulting...

Abstract In the paper microstructures of WE43 matrix composites reinforced with carbon fibres have been characterised. The influence reinforcement type and T6 heat treatment (a solution at 525°C for 8 h, a hot water quench subsequent ageing 250°C 16 h) on microstructure evaluated. light microscope scanning electron investigations carried out. No significant differences in samples non-coated textiles reported. substantial changes sample nickel-coated textile observed. segregation alloying...

Carrying out technological tests and research is indispensably connected with high costs elongation of implementation time new casting technologies their modifications in industry. Hence, the application specialised computer software, enabling simulation analysis metallurgical processes modern foundry industry special interest. The present work presents an experimental MAGMASoft software process EV31A magnesium alloy structural element helicopter engine. results have been compared industrial...

In the paper potential of conventional casting technology in fabrication modern magnesium-based thermoelectric materials was evaluated.Although these are considered as environmentalfriendly alternative for commercially used based on heavy metals, bulk Mg-based with simple and cost-effective technologies is still challenging.In present work it found that possible to obtain gravity technology.The following technological problems were identified: high reactivity vapor pressure magnesium, large...

Cast magnesium alloys are characterised by the lowest density among commercially used structural metals. They applied mainly in transportation industry and small, lightweight electronic devices. Due to low operating temperature of most widely from Mg-Al system, containing rare earth elements with maximum working reaching 300°C have been developed. However, these extremely expensive due availability RE elements. The Mg-Bi system is a promising candidate for new magnesium-based alloys, as it...