Erosion properties of Fe based amorphous/nanocrystalline coatings prepared by wire arc spraying process

Liang, Xiubing; Cheng, Jiangbo; Bai, Jinyuan; Xu, Bin

doi:10.1179/174329409x409521

Cited by 22 publications

(10 citation statements)

References 31 publications

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“…It provides superior hardness and abrasion strength to the material because of its high carbide production features. Some researchers have worked with Fe-based arc spray coating wire, including Fe-Cr alloy, 30 FeCrCMn, 31 Fe-Cr-Al-B, 32 Fe-C-Cr alloy, 33,34 FeBSiNb, 35 FeCrBSiMnNbY and FeBSiNbCr, 36 and FeCrB(CSi) and Fe-Cr-Al. 37 Basic advantages including subdued cost, elevated spray rate, high deposit capacity, ease of application, and elasticity are the main reasons for the widespread use of the EAS technique.…”

Section: Introductionmentioning

confidence: 99%

Determination of abrasion resistance of Fe28Cr5C1Mn coating applied to 30MnB5 boron alloy cultivator blades via electric arc spray

Güney

Dilay

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The poor abrasive wear behavior of agricultural machinery affects the farmers all over the world, rendering their activities more inefficient and negatively affecting their productivity. Therefore, innovation in the manufacture of soil cultivation machinery and the selection of wear-resistant materials has been of great importance. Recently, boron alloys, in particular, have been used in the manufacture of machinery parts that work the soil. The aim of this was to investigate the behavior of the blades of the machines widely used in soil cultivation in agricultural production following a surface treatment technique. For this purpose, the blades made of 30MnB5, a material widely used in the production of cultivator blades, were used as substrate samples in the trials as well as blades of the same substrate coated with Fe28Cr5C1Mn alloy wire via the electric arc spray technique. The morphologies and structures of the uncoated and coated samples were comprehensively analyzed by light microscopy, scanning electron microscopy, energy dispersive spectrometry and X-ray diffraction. In addition, their microhardness, porosity, and surface roughness properties were assessed separately before and after plowing. These prepared blades were tested under in the same conditions by plowing the same field at two different soil moisture. Although the weight loss was measured as 9.4 g and 5.4 g in the uncoated and in the coated sample at 9% moisture level, respectively, the weight losses were at 14% humidity level were 10.6 g and 5.9 g in the uncoated and coated samples, respectively. Although the amount of wear increased with increasing humidity levels in both groups, the mass wear loss in cultivator blades coated with Fe25Cr5C1Mn alloy wire was found to be lower in all trials. The results suggest that coating the cultivator blades using electric arc spray would increase agricultural productivity and reduce factors that cause environmental pollution.

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Section: Introductionmentioning

confidence: 99%

Determination of abrasion resistance of Fe28Cr5C1Mn coating applied to 30MnB5 boron alloy cultivator blades via electric arc spray

Güney

Dilay

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Inspection of failed components revealed that the failure process is corrosion initiated and then erosion dominant corrosion initiated layers are removed faster due to combination of factors like micro pitting, local cavitations and impulsive jet of water with sand erodents. [25][26][27][28][29] It was observed that WC-Co-Cr cermet coating deposited with fine grained WC exhibits higher slurry erosion resistance under all testing conditions as compared to conventional cermet coating.…”

Section: Other Influencing Factorsmentioning

confidence: 94%

Selection and characterisation of HVOF cermet coatings for volutes of high capacity pumps of opencast lignite mines

Kumarasamy¹,

Natarajan²

2016

Surface Engineering

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The centrifugal pumps made of grey cast iron deployed in mining conditions encounter severe erosion and corrosion problems causing sudden failures. To combat this, the thermal spray 'high velocity oxyfuel' (HVOF) process was selected to provide a cermet coating, namely, WC-Co-Cr-Ni. After design investigation on coatings, erosion and corrosion experiments were conducted and characterisation studies involving microstructure, surface morphology and energy dispersive X-ray fluorescence analysis were made. The operating parameters on the different sections of impact volute surface were assessed and accordingly, the coating thickness was designed scientifically for maximum impact loads and minimum corrosion failures. The life of the coated pump casings has been improved up to 12 times by optimising the coating thickness.

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“…In the case of nanocrystalline grain size, more than 50% of atoms are associated with grain boundaries due to small grain size resulting in more contribution towards physical properties of material [25]. Nanocrystalline coatings can be deposited using several techniques, yet thermal spraying has been reported by several researchers as one of the best techniques available [46][47][48][49][50][51][52][53][54][55]. Thermal spraying with nanostructured feedstock powders has resulted in higher hardness, strength, and corrosion resistance compared to conventional powders.…”

Section: Nanostructured Cermet Coatingsmentioning

confidence: 99%

Nanocrystalline Cermet Coatings for Erosion–Corrosion Protection

et al. 2019

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The processing techniques, microstructural characteristics, and erosion corrosion behaviour of Cr3C2–NiCr and tungsten carbide (WC)-based cermet coatings are reviewed in this work. Conventional and nanocrystalline Cr3C2–NiCr and WC-based cermet coatings are generally synthesized using thermal spray technique. The wear, erosion, and corrosion protection ability of conventional and nanocermet coatings are compared based on available literature. In Cr3C2–NiCr coatings, the corrosion resistance is offered by NiCr metal matrix while the wear resistance is provided by the carbide ceramic phase, making it suitable for erosion–corrosion protection. The nanocrystalline cermet coatings exhibits better erosion–corrosion resistance as compared to the conventional coatings. The nanocrystalline coatings reduces the erosion–corrosion rate significantly compared to conventional coatings. It is attributed to the presence of the protective NiCr metallic binder that allows easier and faster re-passivation when the coating is subjected to wear and the fine-grain structure with homogeneous distribution of the skeleton network of hard carbide phases. In addition, corrosion-accelerated erosion dominates the reaction mechanism of erosion–corrosion and, therefore, higher hardness, strength, and better wear resistance of nanocermet coating along with its faster repassivation kinetics accounts for improved corrosion resistance as compared to conventional coatings.

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Erosion properties of Fe based amorphous/nanocrystalline coatings prepared by wire arc spraying process

Cited by 22 publications

References 31 publications

Determination of abrasion resistance of Fe28Cr5C1Mn coating applied to 30MnB5 boron alloy cultivator blades via electric arc spray

Determination of abrasion resistance of Fe28Cr5C1Mn coating applied to 30MnB5 boron alloy cultivator blades via electric arc spray

Selection and characterisation of HVOF cermet coatings for volutes of high capacity pumps of opencast lignite mines

Nanocrystalline Cermet Coatings for Erosion–Corrosion Protection

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