High-frequency induction heat sintering (HFIHS) technology was employed for fabrication of highly dense (N 99.5%) graphene-reinforced alumina nanocomposites. The mixed powders were consolidated at temperatures up to 1500 °C with 0.25 to 3.0 wt.% exfoliated graphene nanosheets (GNS). Compared with monolithic alumina, there was grain size refinement by 46% with an associated increase in the fracture toughness (by 72%) and hardness values (7%).

In this paper we report on the corrosion inhibition of cast iron in Arabian Gulf seawater by two different ionic liquids namely, 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl) and 1-butyl-1-methylpyrrolidinium chloride ([Py1,4]Cl). The inhibiting influence of the employed ionic liquids was investigated by weight loss, open circuit
potential electrochemical impedance spectroscopy, and cyclic potentiodynamic polarization.

The magnesium alloy AZ31(96Mg-3Al-1Zn alloy) was coupled with nickel using transient liquid phase bonding method at 520 o C for different periods of time varied from 5 min to 40 min. The corrosion behavior of the Mg alloy AZ31 without and with Ni coupled within it in 3.5 wt.% sodium chloride solution was reported using cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS). The study was complemented by scanning electron microscope (SEM) and energy dispersive X-ray (EDX) analysess.

In this work, the results obtained from studying the corrosion of cast iron in freely aerated stagnant Arabian Gulf seawater (AGS) at room temperature were reported. The study was carried out using weight-loss (WL), cyclic potentiodynamic polarization (CPP), open-circuit potential (OCP), and electrochemical impedance spectroscopy (EIS) measurements and complemented by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) investigations.

Aluminum-Carbon composites with different weight ratio of carbon fiber were fabricated using powder metallurgy route. The mixture powders were consolidated using heat induction furnace under vacuum at temperature of 600°C and pressure 50 MPa. Two different aspect ratio of carbon fiber were used in this study; namely 12 and 20. The mechanical properties of composites were evaluated by compression and hardness tests. The SEM was used to analyze the structure of the composites which showed a very good dispersion.

A porous surface of Ti-HA composite was successfully fabricated by pulsed current activated sintering (PCAS), followed by leaching using diluted H3PO4. The Ti and HA powders were mixed at different contents of the HA, Ti-5, 10, 30 and 40wt% HA powders. The mixed powders were pressed in a coated graphite die using pulsed current activated sintering (PCAS) under pressure of 60MPa at temperature of 1000°C for 5min. The sintered Ti-HA specimens were immersed in the eight kinds of leaching solutions at room temperature for 24h.