Microstructure of Sn–1Ag–0.5Cu solder alloy bearing Fe under salt spray test

Nordin, Nor Ilyana Muhd; Said, Suhana Mohd; Ramli, Rahizar; Sabri, Mohd Faizul Mohd; Sharif, Nurulakmal Mohd; Arifin, Nurulhuda; Ibrahim, N. N. S.

doi:10.1016/j.microrel.2014.07.068

Cited by 18 publications

(7 citation statements)

References 13 publications

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“…However, the literature is scarce on the corrosion behaviour of SAC solder alloys in corrosive media. Nordin et al [13] pointed out that severe penetration of chloride through the material surface observed in SAC105 with the addition of Fe as compared to as-cast SAC105 solder. In contrast, the addition of Bi has no significant influence on the corrosion rate of Sn-9Zn [20].…”

Section: Introductionmentioning

confidence: 99%

Corrosion insight of iron and bismuth added Sn–1Ag–0.5Cu lead-free solder alloy

Subri

Sarraf

Ali

et al. 2019

Corrosion Engineering, Science and Technology

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The present study attempted to assess the corrosion performance of iron (Fe) and bismuth (Bi) added Sn-1Ag-0.5Cu (SAC105) lead-free solder alloy in NaCl-based solutions. Potentiodynamic polarisation measurements indicated that in acidic or alkaline solutions, corrosion potential (Ecorr) shifted to more negative (active) values and the corrosion current density (icorr) visibly increased. In a neutral pH solution, SAC105 solder alloys exhibited notable corrosion resistance owing to the stability of passive film formed on the surface of solder alloys. Potentiodynamic polarisation curves also showed that the addition of 0.05 wt% Fe and 1 wt% Bi improved the corrosion rate of SAC105 and lowered the Ecorr towards more noble value due to the reduced micro-galvanic interaction between the cathodic Ag3Sn IMCs and the anodic Sn matrix. Immersion tests revealed that the mass loss increased in the order: SAC105-Fe-2Bi > SAC105 > SAC105-Fe-1Bi.

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Section: Introductionmentioning

confidence: 99%

Corrosion insight of iron and bismuth added Sn–1Ag–0.5Cu lead-free solder alloy

Subri

Sarraf

Ali

et al. 2019

Corrosion Engineering, Science and Technology

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“…All indium-containing sub-alloys enter this pseudo-passivation region slightly later (with 0.1 V difference) than SAC305. Note that current density in pseudo-passivation regions is much higher than one can have with NaCl solution (Nordin, 2014). This should be expected because of the extreme acidity of the 1M HCl environment.…”

Section: Potanciodynamic Polarization Analysismentioning

confidence: 91%

The Effect Of Indium Addition on The Corrosion Kinetics of Sn–3Ag–0.5Cu Alloy In HCl Acid Solution

Oguz¹,

Erer²,

Türen³

et al. 2022

European Journal of Science and Technology

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The aim of this study is to investigate the corrosion behavior of potentiodynamic polarization indium added Sn-3Ag-0.5Cu alloy in 1M HCl solution. SEM and EDX analyses were examined the properties of the alloy samples. Polarization analyses showed by the addition of 0.5, 1, and 2 wt.% indium to the SAC305 solder alloy does not lead to notably different corrosion potentials. The pseudo-passivation region is observed instead of a true passivation region that currents are nearly constant. By the scanning interval, this pseudo-passive region does not have a reactivation point. On the other hand, corrosion rates follow a pattern in which 0.5% wt of indium substitution of silver causes the corrosion rate to decrease. However, with further silver replacement by indium, the rate of corrosion increases. According to the results of microstructure analysis, the formation of corrosion products and the existence of voids and porous structures limit their stability.

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“…Corrosive property is dependent on the presence of chloride ions, which causes pit nucleation; the presence of humidity, which cause galvanic corrosion; and the drying phase, which trap chloride ions beneath the corrosion by-products [13,40]. e sizes and areas of slat spray droplets can influence the corrosion characterization of 2060-T8 Al-Li alloy.…”

Section: Formation and Evolution Model Of Salt Spray Dropletmentioning

confidence: 99%

“…Al-Li alloys are susceptible to corrosion after prolonged exposure to high-salt or humidity environment, which inuences the use for structural applications. e salt fog phenomenon is commonly found in snowy or ocean environment, which usually induces galvanic corrosion and speeds up electrolytic and galvanic corrosion due to the presence of chloride ion [8][9][10][11][12][13][14][15][16]. To be accepted for production, components must pass a de ned number of neutral salt spray corrosion hours [15].…”

Section: Introductionmentioning

confidence: 99%

Salt Spray Corrosion of 2060-T8 Al–Li Alloy in an Aggressive Environment

Zhang

Wang

2022

Advances in Materials Science and Engineering

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The phase and microstructure of corrosion product formed on 2060-T8 Al–Li alloy have been investigated effectively by SEM and XRD after salt spray corrosion. It was found that the corrosion product growth rate can be divided into three stages: the main phases of corrosion product were Al2O3, Al(OH)3, and AlOOH phases; as the increasing of salt spray time, the phase angle of A12O3 shifts slightly to the left at 31.8°; and the phase angle of A12O3 first shifts to the left, then to the right at 38.6°. The formation and evolution model of salt spray droplet was built, and the formation mechanism of corrosion product was also analyzed. This alloy shows a sensitive corrosion performance to the salt spray environment.

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Microstructure of Sn–1Ag–0.5Cu solder alloy bearing Fe under salt spray test

Cited by 18 publications

References 13 publications

Corrosion insight of iron and bismuth added Sn–1Ag–0.5Cu lead-free solder alloy

Corrosion insight of iron and bismuth added Sn–1Ag–0.5Cu lead-free solder alloy

The Effect Of Indium Addition on The Corrosion Kinetics of Sn–3Ag–0.5Cu Alloy In HCl Acid Solution

Salt Spray Corrosion of 2060-T8 Al–Li Alloy in an Aggressive Environment

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