The feasibility and parameters optimization of AA5183 aluminum cladding on AISI 1018 steel by electro spark microwelding (ESM) and the corrosion resistance of the clad plate were investigated. The optimum conditions were found as 15 A, 10%, 800 Hz and 2500 rpm for P, D, F and R factors, respectively. Confirmation test under optimum conditions showed that the model can be effectively used to pre...

In this paper, a study was carried out to investigate the surface roughness and material removal rate of low carbon NiTi shape memory alloy (SMA) machined by Wire Electro Spark Erosion (WESE) technique. Experiments are designed considering three parameters viz, spark ON time (SON), OFF (SOFF), voltage (V) at levels each. The increased from 2.1686 μm 2.6869 with an increase in both SON time, SOF...

A half-Heusler (HH) type high entropy alloy (HEA) Ti 2 NiCoSnSb has been synthesized by a fast powder metallurgy route for the first time. Mechanical alloying (MA) wet milling produced with minor fraction of HH phase. The dry resulted in desired single-phase material. Consolidation nanocrystalline mechanically alloyed spark plasma sintering (SPS) majority Interestingly, exhibited simultaneous e...

Research on efficient light emission from silicon devices is moving toward leading-edge advances in components for nano-optoelectronics and related areas. A silicon laser is being eagerly sought and may be at hand soon. A key advantage is in the use of silicon-based materials and processing, thereby using high yield and low-cost fabrication techniques. Anticipated applications include an optica...

In the past decade, formulation of spark-desensitized nanothermites has considerably advanced, making them safe to handle. When ignited, these materials reveal impressive properties such as high temperatures (>1000 °C), intense heat releases (>kJ/cm3), and sometimes gas generation. Unfortunately, energetic systems are systematically characterized by an extreme sensitivity electrostatic di...

Magnesium (Mg) has been paid attention to the viewpoint of weight reduction structural materials. However, Mg alloys fabricated by ingot metallurgy process have limited applications as materials due their low mechanical property and corrosion resistance. In this research, novel Mg-Al alloy was synthesized alloying-spark plasma sintering (MA-SPS) process. Vickers hardness test X-ray diffraction ...

Cr2Nb alloys are potential candidates for high-temperature structural materials. The influence of different mechanical alloying parameters (milling time) and sintering processes were studied. After observation by scanning electron microscope (SEM), nano powders characterized then sintered spark plasma (SPS). Electrochemical noise (EN) tests also conducted in order to study the electrochemical b...