The investigation of magnetic property and corrosion resistance of the assisted Sol-Gel synthesis of Ti/Ni/Co nanocomposites

Chiyasak, Pongpak; Kalnaowakul, Phuri; Rodchanarowan, Aphichart

doi:10.1016/j.surfcoat.2020.125800

Cited by 4 publications

(5 citation statements)

References 33 publications

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“…After the sintering at each temperature, the workpieces showed the characteristics of the different specimens. We found that the specimens sintered at 1100 • C resulted in a completely homogeneous substance and high mechanical properties, as also shown in [27,28]. However, the specimens obtained via sintering at other temperatures showed longitudinal cracks on their surfaces, and the interiors of the samples could not be used as electrodes [27][28][29].…”

Section: Structural Analysis Resultssupporting

confidence: 56%

“…The results showed that a test piece compressed at 600 MPa and sintered at 900 • C for 30 min had a relative density of 82.61%, a conductivity of 40.82%, and a hardness of 116.4 HV. The same results also showed a high hardness and density due to the high temperature used for the manufacturing [28]. However, it is important to consider the selection of electrode materials for the EDM process.…”

Section: Introductionmentioning

confidence: 56%

“…We found that the specimens sintered at 1100 • C resulted in a completely homogeneous substance and high mechanical properties, as also shown in [27,28]. However, the specimens obtained via sintering at other temperatures showed longitudinal cracks on their surfaces, and the interiors of the samples could not be used as electrodes [27][28][29]. The interior of each sample was investigated using surface analysis techniques and chemical dispersion with SEM-EDS (energy dispersive spectroscopy) instruments after calcination.…”

Section: Structural Analysis Resultsmentioning

confidence: 76%

“…Additionally, to the best of our knowledge, there are few works in the literature that have reported the use of ternary metal (Cu-Ni-TiN) powders in the EDM process [27][28][29]. Padhi et al and Davim et al [28,30] explained the results of the additive of Cu doped into plastic electrode and other metal electrodes, which helped to increase the material removal rate and caused less tool wear.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of Ternary Metal (Cu-Ni-TiN) Electrodes Used in an Electrical Discharge Machining Process

Saodaen

Janmanee

Rodchanarowan

2021

Metals

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In the industrial field, electric discharge machining (EDM) is the most commonly used non-traditional machining process because it has the potential to machine electrically conductive materials of high hardness. To satisfy the need for rapid and economical fabrication of EDM electrodes, techniques that use the addition of more metal in the manufacturing process are gaining in popularity. This study presents an investigation of the characterization of ternary metals (Cu–Ni–TiN) for EDM electrodes by using powder metallurgy, which leads to enhancement of the mechanical properties, such as the hardness, electrical properties, and other properties, for the formation of Cu in Ni-TiN electrodes using a cold press at pressures of 18, 20, and 22 MPa. The influences of the parameters of this process were identified for the betterment of Cu–Ni–TiN on the surface. The specimens were calcined in a furnace at 1100 °C for 1 h, with a mixture of argon and hydrogen gas as a controlled gas in the ratio of 95:5. The specimens were investigated in terms of hardness, electric resistivity, apparent density, and porosity. The results show that the 80% Cu–3% Ni–17% TiN electrode at 18 MPa had the highest hardness (124.38 HV) and the lowest electric resistivity (0.39188 cm), while the specimen increased Cu with a ratio of 85% Cu–3% Ni–12% TiN, and a pressure of 20 MPa was found to have the highest density (8.5472 g/cm3) and the lowest porosity (6.2922%). As a further confirmation of the above results, the X-ray diffraction (XRD) patterns of the surfaces of the specimens exhibited major phases that supported the ternary Cu–Ni–TiN phase. However, we also achieved the successful use of Cu–Ni–TiN electrodes as a titanium source (as an alternative to the conventional metal powder) to provide a novel approach to fabricating composite electrodes through the EDM process.

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Section: Structural Analysis Resultssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 56%

Section: Structural Analysis Resultsmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characteristics of Ternary Metal (Cu-Ni-TiN) Electrodes Used in an Electrical Discharge Machining Process

Saodaen

Janmanee

Rodchanarowan

2021

Metals

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“…Martensitic lamellae were an easy target for the onset of environment-induced degradation in an environment of acid solution. The passivation phenomena were not easily visible and the environment-induced degradation rates tended to increase as a function of solution concentration [ 86 ].…”

Section: The Cu-zn-al Shape Memory Alloy In Monitored Ambiencementioning

confidence: 99%

Environment-Induced Degradation of Shape Memory Alloys: Role of Alloying and Nature of Environment

Santosh,

Harris,

Srivatsan

2023

Materials

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Shape memory effects coupled with superelasticity are the distinctive characteristics of shape memory alloys (SMAs), a type of metal. When these alloys are subject to thermomechanical processing, they have the inherent ability to react to stimuli, such as heat. As a result, these alloys have established their usefulness in a variety of fields and have in recent years been chosen for use in stents, sensors, actuators, and several other forms of life-saving medical equipment. When it comes to the shape memory materials, nickel–titanium (Ni-Ti) alloys are in the forefront and have been chosen for use in a spectrum of demanding applications. As shape memory alloys (SMAs) are chosen for use in critical environments, such as blood streams (arteries and veins), orthodontic applications, orthopedic implants, and high temperature surroundings, such as actuators in aircraft engines, the phenomenon of environment-induced degradation is of both interest and concern. Hence, the environment-induced degradation behavior of the shape memory alloys (SMAs) needs to be studied to find viable ways to improve their resistance to an aggressive environment. The degradation that occurs upon exposure to an aggressive environment is often referred to as corrosion. Environment-induced degradation, or corrosion, being an unavoidable factor, certain techniques can be used for the purpose of enhancing the degradation resistance of shape memory alloys (SMAs). In this paper, we present and discuss the specific role of microstructure and contribution of environment to the degradation behavior of shape memory alloys (SMAs) while concurrently providing methods to resist both the development and growth of the degradation caused by the environment.

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Effect of Ni addition on magnetism and corrosion resistivity of Ti/Co/Ni nanocomposites by sol–gel methods

Rodchanarowan

Chiyasak

Kalnaowakul

et al. 2022

Journal of Magnetism and Magnetic Materials

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The investigation of magnetic property and corrosion resistance of the assisted Sol-Gel synthesis of Ti/Ni/Co nanocomposites

Cited by 4 publications

References 33 publications

Characteristics of Ternary Metal (Cu-Ni-TiN) Electrodes Used in an Electrical Discharge Machining Process

Characteristics of Ternary Metal (Cu-Ni-TiN) Electrodes Used in an Electrical Discharge Machining Process

Environment-Induced Degradation of Shape Memory Alloys: Role of Alloying and Nature of Environment

Effect of Ni addition on magnetism and corrosion resistivity of Ti/Co/Ni nanocomposites by sol–gel methods

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