High-Temperature Oxidation Resistance of NiAl Intermetallic Formed In Situ by Thermal Spraying

Jia, Quanli; Li, Deyuan; Li, Shumei; Zhang, Zhuang; Zhang, Nannan

doi:10.3390/coatings8080292

Cited by 25 publications

(8 citation statements)

References 29 publications

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“…Among the different ways to improve the surface properties, some of the most commonly used methods involve altering the alloying chemical composition, heat treatments chemical vapor deposition (CVD), physical vapor deposition (PVD), ion implantation, solgel coating, anodic oxidation, laser treatment, pack cementation, etc., [22][23][24][25][26][27][28][29][30][31][32][33]. Plasma spray technology has been used to apply coatings on Ti-base alloys to improve their corrosion resistance [34,35]. The use of ions implantation such as oxygen or nitrogen by plasma has been used to improve both wear and corrosion resistance of metals.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

et al. 2021

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A Ti6Al4V alloy was plasma-oxidized at 600 °C during 1, 2, 3, 5 and 8 h and corroded in an artificial saliva solution. Electrochemical evaluation was performed by using potentiodynamic polarization curves, linear polarization resistance (LPR), and electrochemical impedance spectroscopy (EIS) measurements during 100 h. Corroded specimens were characterized by using Raman spectroscopy and scanning electronic microscopy (SEM). All tests indicated that the highest corrosion resistance was obtained for specimen oxidized during 3 h since the noblest free corrosion potential, lowest passive and corrosion current density values, as well as the highest polarization resistance values were obtained under these circumstances. EIS measurements indicated that the highest impedance and phase angle values obtained for this specimen exhibited a high capacitive behavior typical of a very compact passive film.

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Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

et al. 2021

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“…The size of the observed nanoparticles varies between 20 to 150 nm. According to the literature, these elements have a low solubility at room temperature but in this case, their concentrations in the alloys are higher than their solubility in aluminum at ambient temperature ( Mathers 2002;Reardon 2011;Ambat et al 2006;McAlister and Murray 1987;Bannour et al 2013;Skoko et al 2009;Jia et al 2018). It means that equilibrium is not reached; these elements may also exist in supersaturated solid solutions or in non-equilibrium intermetallic phases (Mathers 2002).…”

Section: Resultsmentioning

confidence: 99%

Microstructural, morphological characterization and corrosion behavior of sand cast AlSi10Cu(Fe) alloy in chloride solution

et al. 2022

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In order to examine the relationship between the microstructure and the corrosion behaviour in chloride solution, the microstructure of AlSi10Cu (Fe) sand cast aluminium alloy has been investigated by using different techniques including scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction analysis, and electrochemical measurements. The microscopic analysis and X-ray diffraction analysis show several phases in addition to matrix phase, including pores and phases at nano and micro scales. The average rate of micropores and nanopores is 4% and 5%, respectively. The nanoparticle size varies between 20 to 150 nm. Plates and corals-like silicon eutectic, rich-Cu phase and Chinese script phase (Al15(Mn,Fe)3Si2) have been observed. Energy dispersive spectroscopy analyses show the presence of a new phase (Cu61.22 Zn25.39Ni11.85 Al1.54) and the pitting corrosion has been demonstrated to be initiated at the nanopores. The electrochemical measurements exhibited the effect of several elements and porosities on the corrosion kinetics that is controlled by charge transfer and diffusion phenomenon. Wide passive windows, followed by the breakdown of passive film and excessive dissolution, have been observed in 0.3 and 3 wt. % NaCl solutions. The electrochemical measurements show a high corrosion rate which does not recommend the use of this alloy in seawater.

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“…At present, the technologies for preparing alloy coatings on metallic surfaces mainly include thermal spraying technologies, such as high-velocity oxygen fuel spraying (HVOF) [ 16 , 17 ], arc spraying [ 18 , 19 ], plasma spraying [ 20 , 21 , 22 ], and laser cladding (LC) [ 23 , 24 ]. The prepared coatings mainly include Fe-based, Cu-based, and Al-based coatings, and are mainly used for preparation of wear-resistant and anti-corrosion coatings, as seen in Table 2 .…”

Section: Preparation Of Coatings On the Surface Of Aviation Partsmentioning

confidence: 99%

Research Progress of Coating Preparation on Light Alloys in Aviation Field: A Review

Wang

Dong

et al. 2022

Materials

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This paper systematically introduces the application status of coating-preparation technology on light alloys in the field of aviation parts repair. Included are the advantages and disadvantages of thermal spraying technology and laser cladding technology in the application process, as well as the research status and application prospects of the emerging cold spray (CS) technology and supersonic laser deposition (SLD) technology. Compared with traditional thermal-spraying technology, CS has many advantages, such as low spraying temperature, low oxygen content of the coating, and low porosity, which can effectively avoid oxidation, burning loss, phase change, and grain length during thermal spraying. CS can prepare oxygen-sensitive, heat-sensitive, amorphous, and nanomaterial coatings that are difficult to prepare by traditional thermal-spraying technology. However, in the preparation of high-strength super-hard alloys, CS has shortcomings such as low deposition efficiency and bonding strength. SLD overcomes the shortcomings of CS while inheriting the advantages of CS. In the future, both technologies will be widely used in repairing and remanufacturing in the field of aviation. Based on the principles of CS and SLD, this paper introduces, in detail, the deposition mechanism of the coating, and the specific application examples of CS in the aviation field at the present stage are described. The research and application status of the two technologies in the fields of anti-corrosion coating, wear-resistant coating, functional coating, repair, and remanufacturing in recent years are reviewed. Finally, the application and development prospects of CS and SLD are discussed.

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High-Temperature Oxidation Resistance of NiAl Intermetallic Formed In Situ by Thermal Spraying

Cited by 25 publications

References 29 publications

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

Corrosion Resistance of a Plasma-Oxidized Ti6Al4V Alloy for Dental Applications

Microstructural, morphological characterization and corrosion behavior of sand cast AlSi10Cu(Fe) alloy in chloride solution

Research Progress of Coating Preparation on Light Alloys in Aviation Field: A Review

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