Friction stir welding/processing of metals and alloys: A comprehensive review on microstructural evolution

Dendrite-Free Li Deposition Using Trace-Amounts of Water as an Electrolyte Additive

Electrodeposition of Ni-Fe alloys, composites, and nano coatings–A review

Recovery of lithium and cobalt from spent lithium-ion batteries using organic acids: Process optimization and kinetic aspects.

The recent developments in the field of hot dip zinc coating are reviewed with special reference to different industrial applications. The improvements in physical and chemical structural composition due to pre- and post-modification processes are discussed. The present review has the focus mainly on the readership of young researchers engaged in this field. Very recent developments on the hot dip galvanization processes are highlighted. Their industrial competencies with aluminium dipping are also briefly discussed. The scopes for immediate future developments are also highlighted then and there.

A review on recent approaches in the field of hot dip zinc galvanizing process

Investigations on the effects of friction stir welding parameters on intermetallic and defect formation in joining aluminum alloy to mild steel

The aim of this work was to investigate the effect of current density on the grain size of electrodeposited nickel coatings. For this purpose, nanocrystalline nickel coatings were deposited from a Watts bath containing 5 g/l sodium saccharin as an additive, by direct current electroplating at different current densities. X-ray diffraction analysis and modified Williamson–Hall relation were used to determine the average grains size of the coatings. The experimental results showed that the coating grains size decreased sharply by increasing the current density from 10 mA/cm 2 to 75 mA/cm 2 . Nanocrystalline nickel coating with average grain size smaller than 30 nm can be achieved at the current densities higher than 50 mA/cm 2 . Furthermore, a general and simple theoretical model based on atomistic theory of electrocrystallization has been made in order to find out the relationship between the grain size and current density. According to this model the variation of log (d) versus log (i) was linear which is in accordance with experimental results for the current densities lower than 75 mA/cm 2 .

The effect of current density on the grain size of electrodeposited nanocrystalline nickel coatings

Room and high temperature wear behaviors of nickel and cobalt base weld overlay coatings on hot forging dies

Nanocrystalline nickel coating was synthesized by direct current electrodeposition from a Watts bath at the current density of 100 mA/cm 2 and pH = 4. The effect of saccharin addition (0–10 g/l) and bath temperature (45–65 °C) on the average grain size of the deposits was investigated by XRD technique. The results showed that the average grain size decreased from 426 nm to 25 nm as the saccharin concentration increased from 0 to 3 g/l, while further increase in saccharin concentration had no significant effect. Theoretical model also indicated a non-linear function for dependence of grain size on saccharin concentration, which was in accordance with experimental results. The experimental results showed that the increases in the bath temperature had no considerable effect on the average grain size of the deposits. A theoretical formula was also established for the temperature dependence of the grain size.

Ahmad Ali Amadeh

Papers

Investigations on the effects of friction stir welding parameters on intermetallic and defect formation in joining aluminum alloy to mild steel

The effect of current density on the grain size of electrodeposited nanocrystalline nickel coatings

Room and high temperature wear behaviors of nickel and cobalt base weld overlay coatings on hot forging dies

The effect of saccharin addition and bath temperature on the grain size of nanocrystalline nickel coatings

Effect of Electroplating Parameters on Microstructure of Nanocrystalline Nickel Coatings