Effect of some process variables on zinc coated low carbon steel substrates

Abstract

This work investigates the effect of some essential plating variable of zinc electro-deposition on low carbon steel substrates. The variation of plating parameter, the depth of immersion, distance between the anode and the cathode on voltage, plating time and coating thickness was considered. The steel substrates were immersed into solution of zinc electroplating bath for varying voltage between 0.5 and 1.0 V. It was discovered that the sample plated at 0.8 V for 20 min gave the best plating properties and it was also observed that increase in applied voltage, plating time, depth of immersion and decrease in distance of the object (cathode) from the anode increases weight gained. Microstructural studies with SEM/OPM however, revealed fine grained deposit of the deposited zinc and the inclusion of addition agent.

Microstructure, tribological and mechanical strengthening effect of multiphase Zn/ZrO2-SiC electrodeposited composite coatings

“…This characterization is in line with the obtained results by [12,13] that particle agglomeration occurs when greater attraction than repulsion energy exists between them. Secondly, there is likely oxide growth at the surface of the metal due to the interaction of Zn with O 2− or OH − anions [1,17].…”

“…Effort to strengthen this atmospheric, high temperature corrosion and mechanical deformation on most fabricated components, moving vessels and equipment is thus a concern of recent [7,8]. Alloy development with thin film codeposition for the purpose of combating high temperature corrosion and improved mechanical value is now gaining ground [8][9][10][11][12].…”

The Effect of TiO2Particulate Reinforcement on the Microstructure and Mechanical Properties of Binary Nano-Composite on Low Carbon Steel

“…The mechanical behaviour due to thermal treatment and porosity within the alloy surface could results in hardness distribution. Some literatures also agree to the fact that compression stress could significantly perk up the micro-hardness when it is much less than the ultimate strength of the coating but [14] revealed that the flaws such as porosity, macro-particle at the alloy surface will have unfavourable effect on the mechanical properties. The Figure 7 also compares the hardness properties of the composite coatings before and after thermal treatment.…”

“…Lately, major efforts to improve the wear, hardness and corrosion resistance of metallic zinc coating, can be traced towards its composites with different materials [11][12][13][14][15][16][17][18]. It is also identified, in particular, that the physical, mechanical and electrochemical properties of materials can be improved with the introduction of nano powders as the second phase particles within the material of interest [13][14][15][16][17][18]. Due to this improvement, composites and alloys such as Zn-Al2O3, Zn-WO3, Zn-Al and Zn-Ni have tremendously gained a wider range of applications in both marine and manufacturing industries recently as a better alternative for regular zinc plating [19][20][21][22][23][24][25].…”

Anti-Corrosion and Tribo-Mechanical Properties of Co-deposited Zn–SnO2 Composite Coating

“…Yet, their susceptibility to corrosion, poor tribological resistance and low hardness limit their applications [2,3]. Nevertheless, many surface enhancement techniques such as thermal spray, vapor deposition, laser alloying, galvanizing and painting have been adopted to improve mild steel properties against electrochemical reaction and plastic deformation [3][4][5][6][7].…”