Effect of Temperature on the Corrosion Behavior and Corrosion Resistance of Copper–Aluminum Laminated Composite Plate

Abstract

In this paper, the effect of temperature on the corrosion behavior and corrosion resistance of the copper–aluminum laminated composite plates were investigated by salt-spray corrosion, potential polarization curve and electrochemical impedance spectroscopy. Moreover, the microstructure of the copper–aluminum laminated composite plate after salt-spray corrosion was observed by scanning electron microscope, and X-ray photoelectron spectroscopy was used to study the composition of corrosion product. The results revealed that the corrosion products of the copper–aluminum laminated composite plate were Al2O3 and AlOOH. Due to the galvanic corrosion of the copper–aluminum laminated composite plate, the cathode underwent oxygen absorption corrosion during the corrosion process; therefore, the presence of moisture and the amount of dissolved oxygen in the corrosive environment had a great influence on the corrosion process. The increasing temperature would evaporate a large amount of moisture, resulting in the corrosion product—aluminum oxide dehydrated and covered the surface of the material in the process of salt-spray corrosion, which played a role in protecting the material. Therefore, the corrosion resistance of the copper–aluminum laminated composite plate first decreased and then increased. In the salt-spray corrosion environment, the corrosion resistance of the copper–aluminum laminated composite plate reached the lowest at 45 °C, and its corrosion rate was the fastest, at 0.728 g/m2·h. The electrochemical corrosion occurred in the solution, and the impact was small; however, in addition to the protective corrosion products, the ion mobility in the solution also had a certain influence on the corrosion rate, and the ionic activity increased with the increase of temperature. Therefore, the corrosion resistance of the copper–aluminum laminated composite plate gradually decreased as the temperature increased, and its corrosion resistance was the worst at 50 °C.

Synergistic corrosion protection of stir-cast hybrid aluminum composites reinforcing CeO2 and GNPs nano-particulates

“…The micrographs of the corroded samples are displayed in Figure 8 (a–d) of V01 and V04 samples at room temperature and elevated temperatures (Konovalova, 2021; Li et al , 2022; Kasen and Tubbs, 2023). During potentiodynamic polarization testing, the base and composite materials were corroded by the 3.5% NaCl solution, which is a highly corrosive medium for aluminum.…”

Investigation of copper corrosion behavior in chloride bath for nickel electrodeposition

“…In order to investigate the corrosion behaviour of copper in nickel electroplating bath, potentiodynamic polarization measurements with a scan rate of 1 mV/s was conducted. The potentiodynamic polarization curves of cooper in chloride bath are shown in Figure 1 and the electrochemical corrosion parameters derived from these curves are gathered in Table 2 It can be seen from Figure 1 that the corrosion current density increase (Icorr) with increasing bath temperature from 3.074 at 25°C to 47.348 µA.cm −2 at 55°C; while the corrosion resistance of copper decreased which is due both to the increase of Clactivity [6] and to the oxygen diffusion toward the metal surface. It is noted that the oxygen content of the water directly affects the corrosion rate since it the solubility decreased with increasing temperature [7].…”

“…Indeed, the increase in temperature led to a reduction in the resistance which slow down the movement of the aggressive ions, therefore reducing the corrosion resistance of the material. Thus, the temperature seems to affect the mobility of Clin the solution, which, in turn, affects the corrosion resistance [6].…”

Temperature Effect on the Corrosion Behavior of Copper inhibited by3,4'-bi-1,2,4-Triazole in neutral salt-spray (NaCl 3%) Medium

“…It is widely used in electronic industries and communications as a conductor in electrical power lines, pipelines for domestic and industrial water utilities including seawater, heat conductors, heat exchangers, etc. for this reason, corrosion of copper and its inhibition in different environment, especially with presence of chloride ions, have attracted the attention of many researchers [9,[11][12][13][14][15]. The most widely used inhibitors in the field of copper corrosion in chloride containing media are azole derivatives.…”