Influence of the Stand-off Distance and of the Layers Thickness on the Adhesion and Porosity of the 97MXC Deposits Obtained by Arc Spraying Process

Haraga, R A; Chicet, Daniela Lucia; Cimpoieşu, N; Toma, Ştefan Lucian; Bejinariu, Costică

doi:10.1088/1757-899x/877/1/012020

Cited by 4 publications

(2 citation statements)

References 27 publications

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“…The adherence of the deposits obtained by thermal spraying is defined as being the force necessary detaching the layer from the substrate. The studies carried out by Haraga et al [47] have demonstrated that the adhesion of the coatings is predominantly mechanical and is due to the solidification of the sprayed liquid particles or to the deformation of the semi-viscous particles on the substrate asperities. The adhesion of the deposits was determined by the traction test -in accordance with EN 582.…”

Section: Analysis Of 97mxc Coatings Adhesionmentioning

confidence: 99%

Hard Alloys with High Content of WC and TiC—Deposited by Arc Spraying Process

Toma¹,

Haraga²,

Chicet³

et al. 2021

Welding - Modern Topics

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Obtained by different spraying technologies: in atmospheric plasma spray, High Velocity Oxygen Fuel (HVOF) or laser cladding, the layers of hard alloys with a high content of WC and TiC find their industrial applications due to their high hardness and resistance to wear. Recognized as being a process associated with welding, the arc spraying process is a method applied industrially both in obtaining new surfaces and for reconditioning worn ones. This chapter presents the technology for obtaining ultra-hard layers based on WC and TiC - by the arc spraying process, using a classic spray device equipped with a conical nozzle system and tubular wire additional material containing ultra-hard compounds (WC, TiC). To study both the quality of deposits and the influence of thermal spray process parameters on the properties of deposits with WC and TiC content, we approached various investigative techniques, such as optical scanning microscopy (SEM), X-ray diffraction, and determination of adhesion, porosity, Vickers micro-hardness and wear resistance.

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Section: Analysis Of 97mxc Coatings Adhesionmentioning

confidence: 99%

Hard Alloys with High Content of WC and TiC—Deposited by Arc Spraying Process

Toma¹,

Haraga²,

Chicet³

et al. 2021

Welding - Modern Topics

View full text Add to dashboard Cite

show abstract

“…Currently, the development of the industrial world is experiencing rapid progress can be observed from the competition between industrial sectors in small, medium to large scale industries. Along with advances in the industrial world, it cannot be denied that many problems often arise in the production process, including wear and corrosion, it is necessary to have surface treatment [1,2,3,4].…”

Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Properties of Twin-Wire Arc Spray and Wire Flame Spray Coating on Carbon Steel Surface

Nurisna

Anggoro

Mujtahid

2022

MSF

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Thermal Spray Coating is a material surface engineering process, where the coating material is heated until it melts then the melt is pushed with high-pressure air as individual particles or droplets to a surface. This study compares two thermal spray coating methods, twin-wire arc spray and wire flame spray to measure the level of hardness, coating strength and good quality of the coating and porosity. This study used medium carbon steel AISI 1045 as substrate and coating material with FeCrMnNiCSiSP alloy elements (AISI 420). Testing mechanical properties were undergone by hardness testing and pull-off test to determine the coating's adhesive strength. The microstructures were observed using a microscope to test the physical properties. After analyzing the research results, it can be concluded that the twin-wire arc spray coating process produces an adequate level of hardness and coating strength. Twin-wire arc spray can increase the percentage value of substrate surface hardness by 50,56 % and the average coating strength of 21,345 MPa. The microstructure observation results on the coating show that the coating results from twin-wire arc spray have good coating quality with the bonds between the elements contained in the FeCrMnNiCSiSP wire which are bonded to each other and form layered layers and minimal porosity in the coating.

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