Surface and Subsurface Characteristics of NiCrBSi Coating with Different WC Amount Prepared by Flame Spray Method

Usana-ampaipong, Tharanon; Dumkum, Chaiya; Tuchinda, Karuna; Tangwarodomnukun, Viboon; Teeraprawatekul, Boonyawat; Qi, Huan

doi:10.1007/s11666-019-00839-3

Cited by 15 publications

(4 citation statements)

References 16 publications

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“…• 347, 050 × 206, 000 × 1 = 401.4 (15) Therefore, adhesive stress A dh0 on the neutral plane h 0 , or in the depth of cut on the neutral plane a p0 , has a specific value of 401.4 MPa. The dependence of the adhesive stress A dhX on the depth of cut is described in Figure 5, according to the approximation relation (16), with excellent accuracy of measurement (0.93).…”

Section: Adhesive Stressmentioning

confidence: 96%

“…Except for the presence of Ni and Ni-Cr phases, it was also observed a layer of Cr 2 O 3 in the thickness of a few nanometers. There is another interesting study [16] of the NiCrBSi coatings with a different extent of tungsten carbide particles prepared by the flame method on spring steel. By adding WC into the coating, the wear resistance, and the hardness of NiCrBSi matrix were increased.…”

Section: Introductionmentioning

confidence: 99%

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Milling of Complex Surfaces of EN 10060 Steel after HVOF Sprayed NiCrBSi Coatings

et al. 2020

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The high-velocity oxy-fuel spraying process was used to investigate and improve the surface properties of a workpiece. The research was focused on the spherical surface of a workpiece made of high-strength steel, a ball and socket assembly. After spraying with a nickel alloy, the surface was machined by milling. The coating was carried out as a process in which a very thin layer of coating of the required thickness and the required specific properties, i.e., high Vickers hardness, adhesion to the surface, wear resistance and other important characteristics, which must be respected in other machining methods, was applied to the already finished, heat-prepared metal substrate. This article deals with the milling of complex surfaces of steel substrate EN 10060 after spraying with NiCrBSi alloy. After spraying, a total of 15 milling experiments were performed in order to determine precisely the optimal cutting parameters of milling and surface adhesion, based on newly acquired prediction relations. The main presented results are new relations for the determination of optimal technological milling conditions based on the identification of adhesive sections using derived equations. The new relations were verified and also compared with the current literature in the field.

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Section: Adhesive Stressmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Milling of Complex Surfaces of EN 10060 Steel after HVOF Sprayed NiCrBSi Coatings

et al. 2020

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“…Furthermore, the good amorphous formability of NiCrBSi alloy provides high mechanical strength and resistance to wear and corrosion [14]. Typically, NiCrBSi coatings are prepared using thermal spraying, such as atmospheric plasma spraying (APS) [11,15], flame spraying (FS) [16,17], or high-speed oxygen fuel spraying (HVOF) [18,19]. These technologies allow high-quality coatings to be produced by melting particles into droplets, impacting them onto a substrate, and rapidly solidifying them in situ.…”

Section: Introductionmentioning

confidence: 99%

Different Primary Gas Flow Rates in Determining the Flattening Behavior of In-Flight Particles in Plasma-Sprayed NiCrBSi Coatings and the Resultant Microstructure and Hardness

Xuan,

Li,

Zhang

et al. 2023

Metals

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The flattening behavior of in-flight particles during plasma spraying is a highly intricate process affected by numerous factors. Therefore, in this work, in-flight particles (spherical NiCrBSi powder) were collected with the water quenching process, and the morphology and composition differences between the original powder particles and the melted in-flight particles were observed using scanning electron microscopy (SEM). The particle size in various states was recorded and calculated. The internal structure of the particles was analyzed to elucidate their morphology and compositions under different flow rates of primary gas (FRPG). A coating with 1.25% porosity and a hardness of 767 HV0.5 was achieved at the FRPG of 80 L/min. X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to characterize the microstructures of the obtained coatings. It was found that the as-sprayed coating had a certain amount of the amorphous phase. A noteworthy correlation was also established, wherein a decreased distance from the substrate, augmented spraying passes, and reduced amorphous phase content were interrelated. Concurrently, a noticeable influence of the tamping effect exerted by the in-flight particles on the coating was observed.

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“…Among them, the NiCrBSi system is widely used for tribological applications, specifically to boost the working lifetime of components that are subjected to wear [3,5]. The Ni matrix assures high ductility and oxidation resistance, Cr further enhances the wear and corrosion behavior and enables the formation of carbides and borides [5], and B and Si suppress the melting temperature of the alloy due to the eutectic reaction, consequently forming a hard precipitate [6]. The presence of such elements promotes wettability and deoxidation, assuring the self-fluxing character of the powders during the remelting process [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Feedstock Powder Intrinsic Characteristics on the Tribological Behavior of Inductively Remelted NiCrBSi Flame-Sprayed Coatings

Muntean,

Vălean,

Kazamer

et al. 2023

Lubricants

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Ni-based alloys are among the materials of choice in developing high-quality coatings for ambient and high-temperature applications that require protection against intense wear and corrosion. The current study aims to develop and characterize NiCrBSi coatings with high wear resistance and improved adhesion to the substrate. Starting with nickel-based feedstock powders, thermally sprayed coatings were initially fabricated. Prior to deposition, the powders were characterized in terms of microstructure, particle size, chemical composition, flowability, and density. For comparison, three types of powders with different chemical compositions and characteristics were deposited onto a 1.7227 tempered steel substrate using oxyacetylene flame spraying, and subsequently, the coatings were inductively remelted. Ball-on-disc sliding wear testing was chosen to investigate the tribological properties of both the as-sprayed and induction-remelted coatings. The results reveal that, in the case of as-sprayed coatings, the main wear mechanisms were abrasive, independent of powder chemical composition, and correlated with intense wear losses due to the poor intersplat cohesion typical of flame-sprayed coatings. The remelting treatment improved the performance of the coatings in terms of wear compared to that of the as-sprayed ones, and the density and lower porosity achieved during the induction post-treatment had a significant positive role in this behavior.

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Surface and Subsurface Characteristics of NiCrBSi Coating with Different WC Amount Prepared by Flame Spray Method

Cited by 15 publications

References 16 publications

Milling of Complex Surfaces of EN 10060 Steel after HVOF Sprayed NiCrBSi Coatings

Milling of Complex Surfaces of EN 10060 Steel after HVOF Sprayed NiCrBSi Coatings

Different Primary Gas Flow Rates in Determining the Flattening Behavior of In-Flight Particles in Plasma-Sprayed NiCrBSi Coatings and the Resultant Microstructure and Hardness

Effect of Feedstock Powder Intrinsic Characteristics on the Tribological Behavior of Inductively Remelted NiCrBSi Flame-Sprayed Coatings

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