Phase interaction induced texture in a plasma sprayed-remelted NiCrBSi coating during solidification: An electron backscatter diffraction study

Chen, Liang‐Yu; Xu, Tianxiang; Wang, Haiyang; Sang, Peng; Lu, Sheng; Wang, Zexin; Chen, Shujin; Zhang, Lai-Chang

doi:10.1016/j.surfcoat.2018.11.019

Cited by 49 publications

(20 citation statements)

References 70 publications

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“…There are 1-2% pores in the coatings. It has been reported in previous studies that a certain amount of pores were present in thermal spray coatings [20,21,22]. In Figure 4 (c), the presence of Cr, Fe, P, Si and C elements in which the matrix was prominently Ni was determined in the analysis of point 2 on light gray.…”

Section: Figure 2 Lm Micrograph Of the Surface Of The Base Materials mentioning

confidence: 61%

The Effect of Flame Spray Coating on the Tribological Properties of Brake Disc

2020

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 High bond strength was obtained between cast iron and NiCrBSi powder coated by flame spray technique.  Hardness of coated sample was found to be approximately three times higher than that of cast iron sample.  The wear rate of the coated sample was found to be lower than the wear rate that of the lamellar graphite cast iron.  The surface roughness of the coated sample was seven times lower than that of the cast iron sample.

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Section: Figure 2 Lm Micrograph Of the Surface Of The Base Materials mentioning

confidence: 61%

The Effect of Flame Spray Coating on the Tribological Properties of Brake Disc

2020

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“…In general, thermal spraying technologies require an equipment that can produce flame or plasma arc with high‐speed gas flow. In line with the energy sources used, common thermal spraying technologies can be primarily categorized into flame spraying, plasma spraying, high velocity oxygen fuel spraying, and other spraying technologies . As the flame spraying and high‐velocity oxygen fuel spraying use the combustion of fuel as heat resources, the highest temperature of the flame in these two technologies is about 1700–2700 °C .…”

Section: Conventional Technologies For Surface Modificationmentioning

confidence: 99%

Surface Modification of Titanium and Titanium Alloys: Technologies, Developments, and Future Interests

2020

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Thanks to a considerable number of fascinating properties, titanium (Ti) and Ti alloys play important roles in a variety of industrial sectors. However, Ti and Ti alloys could not satisfy all industrial requirements; the degradation of Ti and Ti alloys always commences on their surfaces in service, which declines the performances of Ti workpieces. Therefore, with aim to further improve their mechanical, corrosion and biological properties, surface modification is often required for Ti and Ti alloys. This article reviews the technologies and recent developments of surface-modification methods with respect to Ti and Ti alloys, including mechanical, physical, chemical, and biochemical technologies. Conventional methods have limited improvement in the properties and/or restriction on the geometry of workpieces. Therefore, many advanced surfacemodification technologies have emerged in recent decades. New methods make Ti and Ti alloys have better performance and extended applications. With requirement of high surface properties in future. Understanding the mechanism in various surface-modification methods, combining the advantages of current technologies and developing new coating materials with high performance are required urgently. As such, incorporation of different surface-modification technologies with high-performance modified layers may be the mainstream of surface modifications for Ti and Ti alloys. . His current research interests focus on the metal additive manufacturing (e.g., selective laser melting, electron beam melting), titanium alloys and composites, and processing-microstructureproperties in high-performance materials.

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“…The solidified melts are spouted and formed around the pores through the discharge channel by the cooling effect of the electrolyte (Xin et al, 2006;Zhang et al, 2006a;Rabadia et al, 2019). It should also be noted that the great thermal stress resulted from the rapid solidification of molten oxide accounts for the appearance of cracks (Niu et al, 2016;Santos et al, 2017;Chai et al, 2018;Chen et al, 2019b). Under the two-steps current-decreasing mode (Figures 3b-d), the solidified melts around cracks can still be observed, while the cracks are discontinuous and their quantity is not as same as on the specimen prepared under 1.2 A mode.…”

Section: Microstructural Featuresmentioning

confidence: 99%

Properties of Micro-Arc Oxidation Coating Fabricated on Magnesium Under Two Steps Current-Decreasing Mode

Wang

Zhang

et al. 2020

Front. Mater.

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A concept of two-steps current-decreasing mode derived from constant current mode was developed to fabricate micro-arc oxidation (MAO) coatings on ZK60 magnesium alloy in a dual electrolyte system. The growth characteristics of coatings were analyzed by voltage-time curves, and the coating microstructures were characterized by means of scanning electron microscopy. Meanwhile, the roughness, corrosion behavior, and microhardness of MAO coatings were investigated. The results show that the MAO coatings exhibit a smooth and compact surface, and have improved hardness, higher thickness, smaller roughness, and uneven distribution of holes. Such positive characteristics result in improved corrosion resistance of MAO coatings. The coating produced under the two-steps current mode of "1.2-0.6A" shows a smaller corrosion rate of 0.1559 g/m 2 •h compared with the one produced under the other mode. The results of nanoscratch tests show that the coating fabricated by "1.2-0.6 A" mode has strong bond strength with the substrate. Under this optimized mode, the MAO process also has the lowest energy consumption of 49.8 W/(dm 2 •µm).

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Phase interaction induced texture in a plasma sprayed-remelted NiCrBSi coating during solidification: An electron backscatter diffraction study

Cited by 49 publications

References 70 publications

The Effect of Flame Spray Coating on the Tribological Properties of Brake Disc

The Effect of Flame Spray Coating on the Tribological Properties of Brake Disc

Surface Modification of Titanium and Titanium Alloys: Technologies, Developments, and Future Interests

Properties of Micro-Arc Oxidation Coating Fabricated on Magnesium Under Two Steps Current-Decreasing Mode

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