Electrochemical Corrosion Behavior and Mechanical Properties of Nanocrystalline Ti–6Al–4V Alloy Induced by Sliding Friction Treatment

Lu, Jiping; Zhang, Wei; Huo, Wangtu; Zhao, Yongqing; Cui, Wenfang; Zhang, Yusheng

doi:10.3390/ma12050760

Cited by 8 publications

(5 citation statements)

References 38 publications

(41 reference statements)

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“…The largest pit with 75 µm diameter and 409 µm 2 area was observed for the SLM-processed 06Cr15Ni4CuMo steel, and for wrought 410 steel corrosion, a pit diameter of 95 µm with its equivalent area of 2015 µm 2 was observed. The SLM-processed 06Cr15Ni4CuMo sample exhibited better corrosion resistance than the wrought 410 steel due to higher E corr and lower I corr values [88]. Generally, the presence of Cr in steel imparts corrosion resistance by forming a stable oxide layer, and in these two samples, the Cr content was ~13% for SLM-processed 06Cr15Ni4CuMo and ~12% for wrought 410 martensitic stainless steel, suggesting good corrosion resistance.…”

Section: Discussionmentioning

confidence: 90%

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Microstructure, Mechanical Properties, and Corrosion Behavior of 06Cr15Ni4CuMo Processed by Using Selective Laser Melting

Maya

Sivaprasad

Kumar

et al. 2022

Metals

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A new class of martensitic stainless steel, namely 06Cr15Ni4CuMo, with applications in marine engineering, was processed by using selective laser melting (SLM). A body-centered cubic martensitic microstructure was observed, and the microstructure was compared with wrought 410 martensitic stainless steel. The SLM-processed sample showed a hardness of 465 ± 10 HV0.5, which was nearly 115 HV0.5 less than the wrought counterpart. Similarly, the SLM-processed sample showed improved YS and UTS, compared with the wrought sample. However, reduced ductility was observed in the SLM-processed sample due to the presence of high dislocation density in these samples. In addition, 71% volume high-angle grain boundaries were observed, corroborating the high strength of the material. The corrosion behavior was investigated in seawater, and the corrosion resistance was found to be 0.025 mmpy for the SLM-processed 06Cr15Ni4CuMo steel and 0.030 mmpy for wrought 410 alloys, showing better corrosion resistance in the SLM-processed material.

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Section: Discussionmentioning

confidence: 90%

“…For the wrought 410 steel, corrosion pits were formed at around 48 V, the pit size was measured to be 95 µm, and its equivalent area was found to be 2015 µm 2 . The SLMprocessed 06Cr15Ni4CuMo sample exhibited better corrosion resistance than the wrought 410 steel due to higher E corr and lower I corr values [88].…”

Section: Corrosion Studiesmentioning

confidence: 91%

Microstructure, Mechanical Properties, and Corrosion Behavior of 06Cr15Ni4CuMo Processed by Using Selective Laser Melting

Maya

Sivaprasad

Kumar

et al. 2022

Metals

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“…48 The outer layer of this film was rich in titanium oxide (TiO 2 ), whereas the inner layer was made by aluminium oxide (Al 2 O 3 ) layer. 49 The chemical reaction that took place during the oxide layer formation is represented in equations (1–7) respectively. 50–52 During the corrosion tests, the Tafel plots were obtained within the potential range of −0.05 to −0.25 V for both 0 h as-cast and SLM printed Ti-6Al-4 V samples.…”

Section: Resultsmentioning

confidence: 99%

Section: Corrosion Analysismentioning

confidence: 99%

Correlation of microstructural with corrosion behaviour of Ti-6Al-4V specimens developed through selective laser melting technique

Jeyaprakash

Yang

Karuppasamy

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Ti-6Al-4 V (Ti64) alloy is majorly preferred for fabricating the parts in biomedical, aerospace and automobile industries. Traditional manufacturing techniques are mostly involved in making these parts. This work is focused on evaluating the as-cast and Selective Laser Melting (SLM) printed Ti64 specimens in terms of microstructure, hardness and corrosion resistance. The microstructure and the hardness of as-cast and SLM printed samples were examined using FESEM with EDS followed by Vickers microhardness test The corrosion resistance offered by both samples at different durations was investigated in an electrochemical workstation followed by the examination of the corroded surface roughness. The results showed that the existence of martensite microstructure in the SLM printed Ti64 sample has paved the way for enhancing the hardness property compared with the as-cast specimen. Furthermore, the corrosion analysis revealed that the formation of strong and compact passive film has been observed on the SLM samples which resist corrosion. This is due to the even distribution of stabilizing elements followed by martensite phase formation with subsequent solidification during the SLM process. The electrochemical impedance spectroscopy (EIS) analysis and surface roughness evaluation also confirm that the SLM samples have a better passive film with higher Rp and lower Ra values, thereby providing greater resistance against corrosion.

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“…layer (Bewer et al, 1982;Heakal and Awad, 2011), causing the well-defined peaks typically associated with close to ideally reversible couples, such as [Ru(bpy) 3 ] 2+ , ferrocene-methanol and ferro/ferricyanide, to become distorted.…”

Section: Properties Of Gold Coated Arraysmentioning

confidence: 99%

Electrochemiluminescence at 3D Printed Titanium Electrodes

et al. 2021

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The fabrication and electrochemical properties of a 3D printed titanium electrode array are described. The array comprises 25 round cylinders (0.015 cm radius, 0.3 cm high) that are evenly separated on a 0.48 × 0.48 cm square porous base (total geometric area of 1.32 cm2). The electrochemically active surface area consists of fused titanium particles and exhibits a large roughness factor ≈17. In acidic, oxygenated solution, the available potential window is from ~-0.3 to +1.2 V. The voltammetric response of ferrocyanide is quasi-reversible arising from slow heterogeneous electron transfer due to the presence of a native/oxidatively formed oxide. Unlike other metal electrodes, both [Ru(bpy)3]1+ and [Ru(bpy)3]3+ can be created in aqueous solutions which enables electrochemiluminescence to be generated by an annihilation mechanism. Depositing a thin gold layer significantly increases the standard heterogeneous electron transfer rate constant, ko, by a factor of ~80 to a value of 8.0 ± 0.4 × 10−3 cm s−1 and the voltammetry of ferrocyanide becomes reversible. The titanium and gold coated arrays generate electrochemiluminescence using tri-propyl amine as a co-reactant. However, the intensity of the gold-coated array is between 30 (high scan rate) and 100-fold (slow scan rates) higher at the gold coated arrays. Moreover, while the voltammetry of the luminophore is dominated by semi-infinite linear diffusion, the ECL response is significantly influenced by radial diffusion to the individual microcylinders of the array.

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Electrochemical Corrosion Behavior and Mechanical Properties of Nanocrystalline Ti–6Al–4V Alloy Induced by Sliding Friction Treatment

Cited by 8 publications

References 38 publications

Microstructure, Mechanical Properties, and Corrosion Behavior of 06Cr15Ni4CuMo Processed by Using Selective Laser Melting

Microstructure, Mechanical Properties, and Corrosion Behavior of 06Cr15Ni4CuMo Processed by Using Selective Laser Melting

Correlation of microstructural with corrosion behaviour of Ti-6Al-4V specimens developed through selective laser melting technique

Electrochemiluminescence at 3D Printed Titanium Electrodes

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