Cobalt chromium is widely used to make medical implants and wind turbine, engine aircraft components because of its high wear corrosion resistance. The ability process geometrically complex an area intense interest enable shifting from traditional manufacturing techniques additive (AM). major reason for using AM ease design modification optimization since machines can directly apply the changes updated STL file print a object. Quality assurance fabricated parts recognized as critical...

Abstract Hierarchical compartmentalization, a hallmark of both primitive and modern cells, enables the concentration isolation biomolecules, facilitates spatial organization biochemical reactions. Coacervate-based compartments can sequester recruit large variety molecules, making it an attractive protocell model. In this work, we report spontaneous formation core-shell cell-sized coacervate-based driven by evaporation sessile droplet on thin-oil-coated substrate. Our analysis reveals that...

For the purpose of reducing energy consumption and construction cost buildings, preparation process geopolymer based foamed concrete, which is a novel material wall roof building, had been studied in detail. Water glass sodium hydroxide were used as alkali activator to excite mixture consists slag, fly ash Kaolin form matrix, finally foams generated using physical foaming method filled into matrix produce geopolymer-based concrete blocks. In process, firstly one four parameters foam content,...

After long-term service, the ground will experience settlement and stability of roadbed be lost. In order to effectively reinforce roadbed, an asphalt grouting mixture has been applied filling roadbed. The rotary compaction method was used prepare different gradation types lime composite-modified oil sludge pyrolysis residue asphalt, mixtures Sup13, Sup19, Sup25. This article takes dynamic modulus as mechanical index, uniaxial compression test is carried out on three kinds mixtures, master...

This paper analyzes the advantages of bilateral power supply systems for electrified railway. Firstly, equilibrium current is analyzed under different external conditions. A method reducing proposed, and voltage loss traction substation caused by this solved. Next, electrical performances system are analyzed, including distribution, impedance loss. Finally, model was built, theoretical analysis simulated verified Matlab/Simulink.

Abstract High entropy alloys (HEAs) can be manufactured in many conventional ways, but it becomes difficult of fabricating heterogeneous materials and structures. Selective Laser Melting (SLM) method generally melts pure elemental powders or prefabricated alloy without alloying process. In-situ SLM, which is also called Additive Alloying (LAA), using a promising for creating HEA with However, the effect diffusion elements molten pool on formation remains unclear. In this paper,...

Static and dynamic compaction of hydrogenated Ti6Al4V powder were investigated experimentally using a hydraulic universal testing machine with magnetic pulse (MPC) machine. Effects discharge voltage, times, temperature, hydrogen content, method on relative density mechanical properties compacts analyzed. Increasing voltage is an effective for growth density. Relative hardness reach their maximum values 93.50% 59.8 HRA under twice compaction, respectively. A proper content improves...

The effect of texture on the anisotropy tensile properties SLM‐formed and annealed Ti6Al4VE alloy is investigated. component microstructure in these alloys dominated by α / ′ phase. Furthermore, there a significant difference intensity X‐ray diffraction peaks between XY plane that perpendicular to build direction (BD) XZ parallel BD, though are with same treatment. Ultimate strength yield X higher than Z exhibit treatment conditions, but plasticity presents an opposite trend. average Schmid...

The purpose of this investigation was to determine the extent which a combination pre-deformation and aging procedures could enhance corrosion wear resistance Ti-15Mo alloy for biomedical materials. initial grains were refined with {332} twins other defects after pre-deformation, increasing amount precipitation nucleation forming finer α phases during aging. precipitates numerous boundaries are beneficial in thicker passivation film phosphate-buffered saline (PBS) solution, 20% pre-deform...

Metal additive manufacturing is an important technique due to its cost effective and rapid prototyping capabilities. This has been widely used in various industries ranging from aerospace military defense. Depending on different metal settings, microstructures, such as cracks, would be generated for finished parts within procedures. Those microstructures could lead undesired defects, which may negatively impact the quality of fabricated products, especially when they are delivered mission...

When the current passing through a high temperature superconducting (HTS) coil that exceeds critical value, properties of materials which make up will fail, generating large amounts heat and even causing serious accidents. Aiming at above safety problem, this paper took three solenoid magnets with different structures as object, conducted simulation study on their electromagnetic performance finite element method (FEM). The magnetic field intensity H was taken dependent variable control...

Separation of mixed ion, especially Cl- and SO42-, is essential for reduced energy consumption achievement the minimal or zero-liquid discharge. Membrane technology has attracted significant attention in this respect owing to its good system coupling maturity. However, it remains challenging fabricate highly selective nanofilm with fine-tuning pore structure that suitable separation SO42-. Herein, we report an asymmetric alicyclic polyamide enhanced interconnectivity by manipulating...