The Influence of Transition Metals Addition on the Corrosion Resistance of Nanocrystalline Al Alloys Produced by Mechanical Alloying

Seikh, Asiful H.; Baig, Muneer; Ammar, Hany R.; Alam, Mohammed Asif

doi:10.3390/met6060140

Cited by 14 publications

(6 citation statements)

References 39 publications

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“…Chromium will also reduce stress corrosionAl susceptibility and improves toughness [9]. In general, concentration of alloying element and environmental condition play a great role on the corrosion behaviour of Al-alloys [10,11]. A material faces decay due to corrosion as corrosion happens in normal temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fe, Ni and Cr on the corrosion behaviour of hypereutectic Al-Si automotive alloy in 3.5% NaCl solution at different temperature and velocity

Kaiser¹,

Sabbir²,

Rahman³

et al. 2019

J. mech. eng.

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The main focus of this study is to examine and evaluate the effect of Fe, Ni and Cr on the corrosion behaviour of hypereutectic Al-Si automotive alloy in 3.5% NaCl solution. Experimental information are attained using conventional gravimetric measurements under different solution temperature and velocity and complemented by resistivity, optical micrograph, scanning electron microscopy (SEM) and X-ray analyzer (EDX) investigations. All the alloys show the negative corrosion rate due to formation of a very thin film of aluminum oxide and hydroxid on the surface. Intermetallic particles in the alloys play a major role in passivity. Temperature accelerates the corrosion and the higher velocity breakdown of the passive film. It also affects the resistivity of the alloys. The results from this study also indicate that the temperature and velocity increase the negative corrosion rate of the alloys due to higher rate of chemical reactions. SEM and EDX analysis indicate that the surfaces compose with a thin layer of aluminum oxide and hydroxide corrosion products.

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Section: Introductionmentioning

confidence: 99%

Effect of Fe, Ni and Cr on the corrosion behaviour of hypereutectic Al-Si automotive alloy in 3.5% NaCl solution at different temperature and velocity

Kaiser¹,

Sabbir²,

Rahman³

et al. 2019

J. mech. eng.

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“…The charge transfer resistance (R ct ) and the formation of a double-layer capacitance (C dl ) at the Al alloy surface, as well as the interface of the solution, relied upon the capacitive region in HF/IF. The corrosion product formation, adsorption, and desorption on the metal surface depended on the inductive loop [52][53][54][55][56]. The initial stage of the pitting corrosion is indicated by R L and L [57,58].…”

Section: Electrochemical Behaviormentioning

confidence: 99%

Effect of Severe Plastic Deformation, through Equal-Channel Angular Press Processing, on the Electrochemical Behavior of Al5083 Alloy

2020

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In this study, Al5083 alloy was deformed through equal-channel angular pressing (ECAP) up to three passes. The ECAP was conducted at room temperature in a mold using route C. The microstructure evolution was investigated under optical microscopic observations. The grain size was measured using ImageJ software. Grain refinement from 145 µM (as received) to 37 µM (after third pass) was observed due to ECAP. The potentiodynamic polarization of the Al5083 alloy was obtained from a 3.5% sodium chloride solution. Electrochemical impedance spectroscopy was performed in the sodium chloride solution to study the alloy’s surface properties. Scanning electron microscopy and Raman spectroscopy were conducted after obtaining the corrosion performance. As a result, we found that ECAP processing leads to the grain refinement of the alloy, which causes a detrimental effect on the corrosion resistance property.

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“…Properties of aluminum and its alloys can be extensively improved through the accumulation of transition metals like Ni, Fe, Cr, Ti, V, Er, Zr, and Sc etc. [12][13][14][15][16]. A good amount of works regarding the use of these elements in Al-Mg alloys has been reported [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Properties of Al-6Mg-xSc (x = 0 to 0.6 wt.%) Alloy Subjected to Thermal Treatment: A Review

Kaiser¹

2021

Rev Adv Mater Tech

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Aluminum-magnesium alloys are regularly used to manufacture different types of sheets, automotive trims, and architectural components, which are very intricate in shape. Additionally it is important due to their excellent properties of high-strength to weight ratio, corrosion resistance and weldability. Magnesium increases the strength of the alloys but there is a tendency to form -phase Al 8 Mg 5 compound, usually denoted as Al 3 Mg 2 precipitates along grain boundaries to facilitate intergranular fracture. Numerous studies have been conducted on these alloys to make their use potential as different places. The use of scandium in Al-Mg alloys is meant for taking the advantage of grain refinement along with the unique precipitation strengthening behavior through the formation of Al 3 Sc precipitates with aluminum, a stable LI 2 phase coherent with the matrix. The purpose of this paper is to review and discuss recent developments on Al-6Mg alloy through scandium addition at different levels under thermal treatment.

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The Influence of Transition Metals Addition on the Corrosion Resistance of Nanocrystalline Al Alloys Produced by Mechanical Alloying

Cited by 14 publications

References 39 publications

Effect of Fe, Ni and Cr on the corrosion behaviour of hypereutectic Al-Si automotive alloy in 3.5% NaCl solution at different temperature and velocity

Effect of Fe, Ni and Cr on the corrosion behaviour of hypereutectic Al-Si automotive alloy in 3.5% NaCl solution at different temperature and velocity

Effect of Severe Plastic Deformation, through Equal-Channel Angular Press Processing, on the Electrochemical Behavior of Al5083 Alloy

Properties of Al-6Mg-xSc (x = 0 to 0.6 wt.%) Alloy Subjected to Thermal Treatment: A Review

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