Influence of SiC particles addition on the corrosion behavior of 2014 Al–Cu alloy in 3.5% NaCl solution

Singh, Iqbal; Mandal, D. P.; Singh, Mahendra; Das, Satyabrata

doi:10.1016/j.corsci.2008.11.001

Cited by 71 publications

(39 citation statements)

References 31 publications

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“…The greatest contribution to this enhanced attack arises from voids at the reinforcement/matrix interface. Other authors reached similar conclusions employing SiCp as reinforcing particles. Han and Chen analyzed corrosion behavior of the Al–B 4 C composite in 3.5 wt% NaCl solution.…”

Section: Introductionsupporting

confidence: 71%

Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB₂ nanoparticles

Abu-warda

López

Escalera-Rodriguez

et al. 2019

Materials & Corrosion

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Corrosion susceptibility of the A6005 alloy reinforced with n‐TiB2 was studied through electrochemical tests. The mechanical alloying (MA) technique was used as the processing route and a posterior hot extrusion was employed to consolidate the powders. Bulk samples were characterized by X‐ray diffraction, scanning electron microscopy, transmission electron microscopy, and microhardness tests. The combination of both MA processing and 5 wt% n‐TiB2 addition in the aluminum matrix produced 61% increase of microhardness. Electrochemical tests were performed in 3.5 wt% NaCl solution to assess the effect of MA processing and TiB2 presence on corrosion behavior. The corrosion resistance of the samples processed by MA increased slightly compared with the base A6005 alloy. The amorphous Al2O3 phase formed during MA processing was the cause of this increase, providing continuity to the passive layer. Furthermore, the addition of TiB2 on the sample processed by MA did not significantly affect corrosion resistance. Polarization tests confirmed that the reinforced sample had similar icorr to that of the unreinforced alloy, and cyclic polarization tests revealed that pit nucleation sites were localized in the interface between Al2O3 and the aluminum matrix.

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Section: Introductionsupporting

confidence: 71%

Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB₂ nanoparticles

Abu-warda

López

Escalera-Rodriguez

et al. 2019

Materials & Corrosion

View full text Add to dashboard Cite

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“…From the Bode plots, one can see the presence of three different frequency regions with respect to impedance (|Z|) and phase angle ( θ ). The high frequency region (>10 3 Hz) determines the properties of reference electrode and solution resistance R s , the medium frequency region (10–10 3 Hz) demonstrates the capacitive behavior of the surface and the low frequency region (<0.01–10 Hz) explains the charge transfer process occurring at metal/solution interface . From the observed EIS behavior, it can be noted that 0.5 and 1 wt% nanoalumina incorporated composite samples show a wide capacitive behavior with the presence of a higher phase angle (70°) in the middle frequency region.…”

Section: Resultsmentioning

confidence: 99%

Effect of sol–gel prepared nanoalumina reinforcement content on the corrosion resistances of Al 6061‐Al₂O₃ nanocomposite in 3.5% NaCl solution

Shrivastava

Singh

2017

Materials & Corrosion

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Sol–gel prepared nanoparticles of pure alpha alumina with 0.5, 1.0, 1.5, 2.0, and 2.5 wt% content were used in the synthesis of Al‐6061 alloy based metal matrix composite via powder metallurgy route. After synthesis, corrosion investigation of the synthesized composite samples were carried out in 3.5% NaCl solution using electrochemical polarization and impedance analysis. A total of 0.5–1 wt% nanoalumina reinforced composite has shown an excellent corrosion resistance of more than an order of magnitude higher as compared to the sintered base alloy. However, a substantial decrease in corrosion resistances of synthesized composite were found after reinforcement of >1.0 wt% nanoalumina and corrosion becomes worse than the sintered base alloy of 2.5 wt% nanoalumina incorporated composite sample. Microstructural examination and relative density measurements of the synthesized composites indicated that increase of porosities and accumulation of nanoparticles in the grain boundary regions conjointly increase the corrosion reaction after exceeding 1.0 wt% nanoalumina reinforcement content.

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“…If there are porosities penetrating into the substrate, then a large potential difference between the coating and substrates may be built. Porosities can therefore do harm to the persistent corrosion resistance of coatings [25][26][27]. The combination of interface in HVOF coating does not belong to metallurgical bonding and the cohesive strength within coating is weak.…”

Section: Electrochemical Performance Of the Coatingsmentioning

confidence: 98%

“…The corrosion rate of the laser treated coating is therefore smaller than that of the coating without laser irradiation. Due to the complex nature of the Diamalloy-4006 coating, there is no reason to use the Butler-Volmer equation in order to estimate the anodic and cathodic Tafel coefficients for using them to get mechanistic information about the steel oxidation, since the requirements to use that equation are not followed by these systems [26,27].…”

Section: Electrochemical Performance Of the Coatingsmentioning

confidence: 99%

Improvement on HVOF sprayed Diamalloy coatings by laser irradiation

Zhang

2012

Appl. Phys. A

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We investigated the structure change, surface properties (roughness, porosity, and hardness), tribological, and electrochemical performances of HVOF sprayed Ni20Cr-10W-9Mo-4Cu-1C-1B-1Fe (Diamalloy-4006) coatings before and after laser irradiation. The results showed that the friction and wear resistance of the coatings were improved significantly with an optimized laser irradiation process. The improvement can be attributed to the improved roughness and hardness, as well as the formation of oxides Cu x O and Cr 2 O 3 tribofilms. With the laser irradiation treatment, the local corrosion of the coating had a decrease and the selective corrosion resistance of the Diamalloy-4006 coating was improved as a result of the decreasing the size and number of the pores, especially compact interface achieved by laser irradiation.

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Influence of SiC particles addition on the corrosion behavior of 2014 Al–Cu alloy in 3.5% NaCl solution

Cited by 71 publications

References 31 publications

Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB₂ nanoparticles

Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB₂ nanoparticles

Effect of sol–gel prepared nanoalumina reinforcement content on the corrosion resistances of Al 6061‐Al₂O₃ nanocomposite in 3.5% NaCl solution

Improvement on HVOF sprayed Diamalloy coatings by laser irradiation

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Influence of SiC particles addition on the corrosion behavior of 2014 Al–Cu alloy in 3.5% NaCl solution

Cited by 71 publications

References 31 publications

Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB2 nanoparticles

Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB2 nanoparticles

Effect of sol–gel prepared nanoalumina reinforcement content on the corrosion resistances of Al 6061‐Al2O3 nanocomposite in 3.5% NaCl solution

Improvement on HVOF sprayed Diamalloy coatings by laser irradiation

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Resources

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Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB₂ nanoparticles

Corrosion behavior of mechanically alloyed A6005 aluminum alloy composite reinforced with TiB₂ nanoparticles

Effect of sol–gel prepared nanoalumina reinforcement content on the corrosion resistances of Al 6061‐Al₂O₃ nanocomposite in 3.5% NaCl solution