Structure-property correlation of eutectic Al-12.4 Si alloys with and without Zirconium (Zr) addition

Biswas, Prosanta; Patra, Surajit; Mondal, Manas Kumar

doi:10.1080/13640461.2020.1769319

Cited by 15 publications

(3 citation statements)

References 42 publications

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“…The main elements of the filler metal alloy are Si and Zn. Si was added to lower the melting temperature of the alloy for brazing [38,39], whereas Zn was added to improve the efficiency of the SACP of the fin by lowering the corrosion potential of the filler metal [19,22,40]. The added elements in the filler metal (Si and Zn) may be in the solid solution or isolated particles of a second phase, intermetallic compounds, or inclusions.…”

Section: Resultsmentioning

confidence: 99%

Effect of Zinc Addition in Filler Metal on Sacrificial Anode Cathodic Protection of Fin-Tube Aluminum Heat Exchanger

So,

Park,

Kim

2023

J. Electrochem. Sci. Technol

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<p>This study investigated the tri-metallic galvanic coupling of different metals in the tubes, fillers, and fins of a heat exchanger. The goal was to prevent corrosion of the tubes using the fin as a sacrificial anode while ensuring that the filler metal has a more noble potential than the fin, to avoid detachment. The metals were arranged in descending order of corrosion potential, with the noblest potential assigned to the tube, followed by the filler metal and the fin. To address a reduction in protection current of the fin, the filler metal was modified by adding Zn to decrease its corrosion potential. However, increasing the Zn content of filler metal also increases its corrosion current. The study examined three different filler metals, considering their corrosion potential, and kinetics. The results suggest that a filler metal with 1.5 wt.% Zn addition is optimal for providing cathodic protection to the tube while reducing the reaction rate of the sacrificial anode.</p>

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Section: Resultsmentioning

confidence: 99%

Effect of Zinc Addition in Filler Metal on Sacrificial Anode Cathodic Protection of Fin-Tube Aluminum Heat Exchanger

So,

Park,

Kim

2023

J. Electrochem. Sci. Technol

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“…Thus, it turns out that the samples are composed of an Al matrix (Z1) (Figure 6b), AlSi2 (Z2) compounds (Figure 6c) and Fe-rich compounds, namely, β-Al5FeSi (Z3) (Figure 6d). Notice that the Al-Si phase diagram do not predict the formation of the compound identified by Z2, but only the formation of Al and eutectic constituent, due to inaccuracy of EDS method (Xerox 2021;Chao et al 2018;Domfang Ngnekou et al 2017;Biswas, Patra and Mondal 2020). However, the SEM-EDS analysis revealed the presence of the compound mentioned before (AlSi2).…”

Section: Microstructurementioning

confidence: 91%

Effect of Aging Heat Treatment in an Al-4008 Produced by Liquid Metal Printing

Ladeiro,

Nunes,

Trindade

et al. 2024

UPjeng

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In today's world, additive manufacturing (AM) is one of the most popular technologies and has the potential to revolutionize the manufacturing industry. As one of the most recent advances in this industry, liquid metal printing has a growing value in the engineering field. This study aims to evaluate the effect of two heat treatment conditions in an Al-4008 alloy produced by this technique in the microstructure and mechanical properties. It was concluded that the heat treatment (HT) enhances the Si particle coalescence and Fe-rich intermetallic compound precipitation, increasing the sample hardness significantly (50%). Density analysis showed a slight porosity decrease with HT. Tensile tests indicated heat-treated, same-directionally pulled samples exhibited brittleness compared to as-printed ones, while HT increased both yield strength (245 MPa) and ultimate tensile strength (294 MPa).

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“…Effect of Zr, V and Mo on microstructure in as-cast and T6 conditionsThe as-cast microstructures of the experimental alloys are shown in Figure2, which generally consisted of α-Al dendrite cells/grains, eutectic silicon, primary Mg2Si and various intermetallic phases distribute in the interdendritic regions. The identification of intermetallic phases was based on the results of SEM-EDS, phase morphologies and the information of our previous work and published literature[6,9,[20][21][22][23]. Typical SEM-EDS spectra of intermetallic phases are shown in Figure3.…”

mentioning

confidence: 99%

Influence of transition elements (Zr, V, and Mo) on microstructure and tensile properties of AlSi8Mg casting alloys

Zhang

Arici

Breton

et al. 2023

Canadian Metallurgical Quarterly

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The influence of the additions of transition elements (Zr, V and Mo) on microstructure, precipitation behavior and tensile properties of Al-8%Si-0.3%Mg permanent mould castings were investigated. It reveals that the presence of the transition elements increased the solute concentration in aluminum matrix, refined eutectic Si particles, and reduced the length and aspect ratio of intermetallic phases in as-cast microstructure. Moreover, the transition element addition promoted the formation of solute cluster and increased the number density of β" precipitates and dispersoids during T6 heat treatment. The additions of Zr, V and Mo considerably improved the tensile strengths and elongation in both as-cast and T6 conditions. The effects of the combined addition of Zr, V and Mo on the microstructure, precipitation behavior and tensile properties were stronger than that of the addition of Zr and V.

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Structure-property correlation of eutectic Al-12.4 Si alloys with and without Zirconium (Zr) addition

Cited by 15 publications

References 42 publications

Effect of Zinc Addition in Filler Metal on Sacrificial Anode Cathodic Protection of Fin-Tube Aluminum Heat Exchanger

Effect of Zinc Addition in Filler Metal on Sacrificial Anode Cathodic Protection of Fin-Tube Aluminum Heat Exchanger

Effect of Aging Heat Treatment in an Al-4008 Produced by Liquid Metal Printing

Influence of transition elements (Zr, V, and Mo) on microstructure and tensile properties of AlSi8Mg casting alloys

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