Effect of alloying elements of steel wire on the structure and properties of coatings in electric arc spraying

Константинов, В. М.; Gubanov, A. S.

doi:10.1080/09507110801990876

Cited by 3 publications

(4 citation statements)

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“…Chromium does not burn during electric arc spraying and greatly increases the corrosion resistance and adhesion properties of the coating. 67 The presence of carbides in the material structure provides both high hardness and excellent wear resistance. The hard phases act as the support matrix.…”

Section: Wear Behaviormentioning

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: Wear Behaviormentioning

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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“…Degree of oxidizing reaction depends on spray material oxidation resistance, particle dispersity, component affinity to oxygen. Quantitative evaluation of the degree of oxidation of the components of spray electrode material is given in [5][6][7].In order to lower the oxidizing action of atomizing jet on liquid metal of consumable electrode tips, it is proposed to apply a pulse atomizing air jet. To solve the defined task, it was necessary to develop an appropriate device.…”

mentioning

confidence: 99%

“…Quality of produced coatings depends on the quantity of oxygen, dissolved in particle metal. Data given in [3][4][5][6][7][8] show that during metallizing an intensive chemical interaction of atomizing air jet with the material being sprayed takes place, leading to a considerable burning out of alloying elements. Oxidation intensity increases with increase of parameters, such as compressed air pressure and distance from apparatus nozzle to item being coated, that has a negative influence on coating mechanical properties.…”

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confidence: 99%

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Application of pulse atomizing jet in electric arc metallizing

Royanov¹,

Bobikov²

2014

The Paton Welding J.

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The paper presents the results of investigation of pulse atomizing air jet application in electric arc metallizing. To ensure the pulsed mode, the respective device was developed allowing control of outflowing of a jet with frequency within 0-130 Hz. Oscillograms of variation of dynamic pressure are given. Dependence of pulse atomizing air jet on frequency of closing the spray gun nozzle channel is shown. Coating microstructures are given. Influence of pulsation frequency on composition of coatings spray-deposited with PP-MM-2 wire is shown. Electric arc metallizing is one of the methods of deposition of thermal spray coatings and features high efficiency, and quite cost-effective and readily realized process of coating spray-deposition. It is known that during metallizing process liquid metal of molten electrode tips is directed by the atomizing air jet onto the item [1,2]. Quality of produced coatings depends on the quantity of oxygen, dissolved in particle metal. Data given in [3][4][5][6][7][8] show that during metallizing an intensive chemical interaction of atomizing air jet with the material being sprayed takes place, leading to a considerable burning out of alloying elements. Oxidation intensity increases with increase of parameters, such as compressed air pressure and distance from apparatus nozzle to item being coated, that has a negative influence on coating mechanical properties. Degree of oxidizing reaction depends on spray material oxidation resistance, particle dispersity, component affinity to oxygen. Quantitative evaluation of the degree of oxidation of the components of spray electrode material is given in [5][6][7].In order to lower the oxidizing action of atomizing jet on liquid metal of consumable electrode tips, it is proposed to apply a pulse atomizing air jet. To solve the defined task, it was necessary to develop an appropriate device.Earlier publications [9][10][11][12] gave examples of improvement of arc spray gun design by application of inserts and devices to provide pulsation of atomizing air jet. They, however, turned out to be unacceptable in view of their complicated design and inertia in operation.The Chair of Welding Production Equipment and Technology of Priazovsky State Technical University developed the method of electric arc metallizing with application of pulse atomizing air jet. Investigations were conducted with stationary arc spray gun EM-17 with a device providing pulsed mode of atomizing jet outflow.In terms of design, the pulse device (further on referred to as pulser) is a cylindrical case with input and output nipples for compressed air input and output, inside which a shaft with an opening

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Morphology and Microstructure of Cr - Al - Fe Coating by Electric Arc Spraying on JIS SKD61 Steel

Pham

Nguyen

2021

Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020)

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Effect of alloying elements of steel wire on the structure and properties of coatings in electric arc spraying

Cited by 3 publications

References 1 publication

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

Application of pulse atomizing jet in electric arc metallizing

Morphology and Microstructure of Cr - Al - Fe Coating by Electric Arc Spraying on JIS SKD61 Steel

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