Hardfacing by plasma transfer arc process

Díaz, Víctor Vergara; Dutra, Jair Carlos; D'Oliveira, Ana Sofia

doi:10.1080/09507116.2010.527486

Cited by 16 publications

(10 citation statements)

References 4 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…66 In the case of this method, plasma is used to melt the coating material, which is deposited on the substrate, where material in the form of powder or wire is used for coating, which is inserted into the plasma. 67,68 Furthermore, the coating can be applied to the substrate first in the form of a powder paste, so it is melted by plasma and bonds to the base material. 69 The thickness of the coating layer achieved Aranke et al 41 Laser hardfacing Aranke et al 41 Olofsson et al 32 Plasma transferred arc (PTA) hardfacing Aranke et al 41 Fotovvati et al 36 Thermal spray processes Atmospheric plasma spraying (APS)…”

Section: Coating Deposition Techniquesmentioning

confidence: 99%

Review of the coatings used for brake discs regarding their wear resistance and environmental effect

Vasiljević

Glišović

Stojаnović

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

Wear of a friction pair of brake (brake disc and pads), in addition to reducing the active safety of vehicles, leads to the formation of particles that can affect the environment and human health. In addition to the technologies that are being developed for the collection of particles created by the wear of brakes during braking process, today new materials are being introduced, as well as various technologies for processing friction pairs with the aim of reducing brake wear and thus the formation of particles. Furthermore, today, technologies for coating (cladding) the friction surfaces of disc brakes with some materials are increasingly applied and researched, in order to reduce the wear intensity (wear rate) of disc brakes, i.e. the emission of particles created by wear of friction pairs. The aim of this paper is to analyse and review different deposition techniques and materials used for brake discs coatings, as well as the effect it has on the wear rate of friction pair. There are many coating deposition techniques, and special attention is paid to the technology of laser hardfacing of brake rotors.

show abstract

Section: Coating Deposition Techniquesmentioning

confidence: 99%

Review of the coatings used for brake discs regarding their wear resistance and environmental effect

Vasiljević

Glišović

Stojаnović

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

show abstract

“…Weld cladding is defined by Silva [11] as the deposition of one or more layers of a corrosionresistant alloy (CRA) on a base metal to improve a desirable property, such as corrosion-resistant that is not inherent to the base metal. These coatings can be deposited by various manufacturing processes such as shielded metal arc welding (SMAW) 12, 13, gas tungsten arc welding (GTAW) [14][15][16][17], gas metal arc welding (GMAW) [18][19][20][21], plasma transferred arc welding (PTA) [22][23][24], electro slag welding (ESW) [25][26][27][28], laser cladding [29][30][31][32], or microwave cladding [33].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of solidification cracking of Ni-based alloy dissimilar welds based on Trans-Varestraint test

et al. 2021

View full text Add to dashboard Cite

This study aims to evaluate the weldability of dissimilar welds with the Inconel 625 and the Hastelloy C-276 nickel-based alloys deposited on ASTM A36 and AISI 1045 carbon steel plates. The welds were carried out by the GMAW process and evaluated by the Trans-Varestraint test. The test results were statistically evaluated, and Fusion Zone solidification processes were simulated in JMatPro software using several dilution levels. The analysis of variance (ANOVA) test results showed that the two different base metals did not affect the weldability of Inconel 625. However, the Hastelloy C-276 alloy showed a significant drop in weldability with the AISI 1045 steel compared to the ASTM A36. The results of the Hastelloy C-276 as the filler metal and the AISI 1045 steel as the base metal showed greater susceptibility to solidification cracking than all the other pairs tested, according to the Trans-Varestraint test. Moreover, the ANOVA test results indicated that the different heat input levels did not influence the sets' weldability; this was probably because there was only a tiny variation in the dilution levels. The solidification process simulation indicates that higher dilution levels promote the precipitation of a larger secondary phase fraction.

show abstract

“…1,[5][6][7][8] Most niche coating techniques produce relatively thin coatings, with thermal spray coatings in the mid-range in terms of thickness, while welding/hardfacing techniques generally produce thicker coatings. 1,9 Thinner laser clad coatings with 30 mm minimum thickness can be produced, 6 with Extreme High-speed Laser Application (EHLA). 10 Although very thin coatings may not be applicable to the load bearing applications discussed here, as they need to be deeper than the depth of maximum Hertzian or other stress that they may experience in service.…”

Section: Introductionmentioning

confidence: 99%

Two-layer laser clad coating as a replacement for chrome electroplating on forged steel

Christoforou

Dowding

Pinna

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

Chrome plating is one of many surface engineering techniques used for corrosion resistance, as well as a protective coating against surface damage in load bearing applications, with surface hardness in the region of 1000 Hv. Laser cladding is an alternative hardfacing technique often chosen for corrosion resistance and for increasing the surface hardness of components, through thick clad coatings. The application of chrome plating and other similar surface engineering techniques for thick coatings can be inefficient and costly with practical process limitations. The objective of this case study was to investigate the feasibility of replacing the chrome plated layer of a rod mill pinion, made of forged steel, with a Nickel-based Tungsten-Carbide (Ni-WC) composite layer and an intermediate layer of Inconel 625. Mechanical properties were obtained using microhardness and nanoindentation techniques. Three-point bend tests were performed on test specimens from a pinion sample, in order to observe crack propagation resistance, a challenging task due to the curved geometry of the pinion sample and the difference in thickness between the existing and proposed coating layers. Crack development was captured, and plastic deformation was quantified with the use of Digital Image Correlation (DIC). In bending it was found that the bond between the composite coating, Inconel 625 and the steel substrate provided improved resistance to axial crack propagation, where the composite coating could withstand more than twice the bending tool displacement than the chrome electroplating.

show abstract

Hardfacing by plasma transfer arc process

Cited by 16 publications

References 4 publications

Review of the coatings used for brake discs regarding their wear resistance and environmental effect

Review of the coatings used for brake discs regarding their wear resistance and environmental effect

Evaluation of solidification cracking of Ni-based alloy dissimilar welds based on Trans-Varestraint test

Two-layer laser clad coating as a replacement for chrome electroplating on forged steel

Contact Info

Product

Resources

About