Corrosion of the Filled Skutterudite Sm0.1(Fe0.45Ni0.55)4Sb12 by NaCl Solutions: An Electrochemical Study

Spotorno, Roberto; Ghiara, Giorgia; Latronico, Giovanna; Carlini, Riccardo; Mele, Paolo; Artini, Cristina

doi:10.1007/s11664-019-07929-6

Cited by 9 publications

(5 citation statements)

References 31 publications

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“…The corrosion potential (E corr ), corrosion current density (i corr ), anodic and cathodic Tafel slopes ( β a and β c ) values derived from PDP curves are listed in Table 2. In general, a lower I corr and higher E corr values indicates a higher corrosion resistance (Spotorno et al , 2020). According to Table 2, the E corr of SLM-700, SLM-800, SLM-900 and SLM-1000 was −197, −76.2, −23.5 and 14.8 mV, respectively.…”

Section: Resultsmentioning

confidence: 99%

Effect of scan speed on corrosion and tribocorrosion properties of cobalt-chromium alloy in situ produced by selective laser melting

Alaloosi,

Çomakli,

Yazici

et al. 2023

RPJ

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Purpose This paper aims to investigate the influence of scan speed on the corrosion and tribocorrosion features of the CoCrMoW samples fabricated via the selective laser melting (SLM) process. Design/methodology/approach CoCrMoW samples were produced by SLM at different scan speeds. Produced samples were made via structural surveys (X-ray diffraction examinations and scanning electron microscopic analyses), hardness measurements and electrochemical and tribocorrosion experiments. Findings Outcomes displayed that the corrosion and tribocorrosion properties of CoCrMoW alloy were significantly influenced by scanning speeds. Also, these properties of the alloy increased with increasing scanning speeds. CoCrMoW samples produced at a laser scan speed of 1,000 mm/s showed the best resistance to corrosion and tribocorrosion. This could be related to the high hardness and low grain structure of the fabricated samples. Originality/value This paper may be a practical reference and offers insight into the effect of scanning speeds on the increase of hardness, tribological and corrosion performance of CoCrMoW alloys. This study can help in the further advancement of cobalt-chromium alloy in situ produced by SLM for both electrochemical and tribocorrosion behavior for biomedical applications.

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Section: Resultsmentioning

confidence: 99%

Effect of scan speed on corrosion and tribocorrosion properties of cobalt-chromium alloy in situ produced by selective laser melting

Alaloosi,

Çomakli,

Yazici

et al. 2023

RPJ

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“…During the first hour of immersion, the potential of both samples increased, as is typical for shell materials that tend to form a passive protective layer on their surface, shifting their potential towards more cathodic values [34]. As a result of the increasing trends, the OCP of sample Ti80-AlSi remained higher (−0.696 vs. Ag/AgCl) than Ti20-AlSi (−0.701 vs. Ag/AgCl), still for the higher amount of Titanium shifting the potential to more cathodic values.…”

Section: Electrochemical Characterizationmentioning

confidence: 86%

Wear and Corrosion Resistance of AlSi10Mg–CP–Ti Metal–Metal Composite Materials Produced by Electro-Sinter-Forging

et al. 2021

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Metal–metal composites are a class of composite materials studied for their high ductility and strength, but their potential applications are currently limited by the complex manufacturing processes involved. Electro-sinter-forging (ESF) is a single-pulse electro discharge sintering technique that proved its effectiveness in the rapid sintering of several metals, alloys, and composites. Previous studies proved the processability of Ti and AlSi10Mg by ESF to produce metal–metal composites and defined a correlation between microstructure and processing parameters. This paper presents the wear and corrosion characterizations of two metal–metal composites obtained via ESF with the following compositions: 20% Ti/80% AlSi10Mg and 20% AlSi10Mg/80% Ti. The two materials showed complementary resistance to wear and corrosion. A higher fraction of AlSi10Mg is responsible for forming a protective tribolayer in dry-sliding conditions, while a higher fraction of Titanium confers improved corrosion resistance due to its higher corrosion potential.

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“…Recently, a study on the deposition of filled skutterudite Sm y (Fe x Ni 1-x ) 4 Sb 12 thin films by PLD and on the optimization of deposition parameters was undertaken [24]. The cited skutterudite was selected according to the results of numerous previous studies of the present research group, highlighting the promising thermoelectric properties of the system and their correlation with the skutterudite crystal structure [11,[25][26][27][28]. One of the main results of the aforementioned study [24] is the recognition of the importance of performing an annealing treatment after the film deposition to increase the phase purity and the crystallinity degree, as well as to stabilize the transport properties [24,29].…”

Section: Introductionmentioning

confidence: 99%

Effect of the annealing treatment on structural and transport properties of thermoelectric Sm _y (Fe _x Ni_1−x)4Sb₁₂ thin films

Latronico¹,

Mele²,

Sekine³

et al. 2023

Nanotechnology

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The crystallographic and transport properties of thin films fabricated by pulsed laser deposition and belonging to the Smy(FexNi1-x)4Sb12 filled skutterudite system were studied with the aim to unveil the effect exerted by temperature and duration of thermal treatments on the thermoelectric and structural features of the films. The importance of annealing treatments in Ar gas atmosphere up to 523 K was recognized, and the thermal treatment performed at 473 K for 3 hours was selected as the most effective in improving the material properties. With respect to the corresponding bulk compositions, a significant enhancement in phase purity, as well as an increase in electrical conductivity and a drop in room temperature thermal conductivity, were observed in annealed films. The low thermal conductivity, in particular, can be deemed as deriving from the reduced dimensionality and the consequent substrate/film interfacial stress, coupled with the nanometric grain size.

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Corrosion of the Filled Skutterudite Sm0.1(Fe0.45Ni0.55)4Sb12 by NaCl Solutions: An Electrochemical Study

Cited by 9 publications

References 31 publications

Effect of scan speed on corrosion and tribocorrosion properties of cobalt-chromium alloy in situ produced by selective laser melting

Effect of scan speed on corrosion and tribocorrosion properties of cobalt-chromium alloy in situ produced by selective laser melting

Wear and Corrosion Resistance of AlSi10Mg–CP–Ti Metal–Metal Composite Materials Produced by Electro-Sinter-Forging

Effect of the annealing treatment on structural and transport properties of thermoelectric Sm _y (Fe _x Ni_1−x)4Sb₁₂ thin films

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Corrosion of the Filled Skutterudite Sm0.1(Fe0.45Ni0.55)4Sb12 by NaCl Solutions: An Electrochemical Study

Cited by 9 publications

References 31 publications

Effect of scan speed on corrosion and tribocorrosion properties of cobalt-chromium alloy in situ produced by selective laser melting

Effect of scan speed on corrosion and tribocorrosion properties of cobalt-chromium alloy in situ produced by selective laser melting

Wear and Corrosion Resistance of AlSi10Mg–CP–Ti Metal–Metal Composite Materials Produced by Electro-Sinter-Forging

Effect of the annealing treatment on structural and transport properties of thermoelectric Sm y (Fe x Ni1−x )4Sb12 thin films

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Effect of the annealing treatment on structural and transport properties of thermoelectric Sm _y (Fe _x Ni_1−x)4Sb₁₂ thin films