Effect of Dilution on Wear Performance of Plasma Transferred Arc Deposited Layers

Yoon, Byoung Hyun; Lee, Changhee; Kim, Hyung Jun

doi:10.2355/isijinternational.isijint-2016-701

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…75 Additionally, the PTA cladding method can be applied more easily and it is less expensive than other methods. 76 It is also having higher productivity compared to thermal spray coating methods. 34 The PTA cladding method is a surface process that reinforces the surface strength against various wear mechanisms and that hardens the material surfaces.…”

Section: Plasma Transferred Arc Hardfacingmentioning

confidence: 99%

“…93 The wear rate of highly diluted layers is higher compared to the layers with lower dilution because of reduced hardness. 76 The wear characteristic of the coating is governed by both dilution and testing temperature. At 400°C, finer microstructure and lower dilution contribute to higher hardness and wear performance.…”

Section: Dilutionmentioning

confidence: 99%

“…6,22,70 A good metallurgical bond was obtained between the substrate and the deposit with minimum dilution using controlled parameters. 75,91 The amount of dilution present in welds is directly related to the heat input used during the welding process which is a function of the arc current and travel speed in PTAW. 17 Thus, reducing heat input under smaller currents causes a lower degree of substrate melting and, as a consequence, lower dilution.…”

Section: Hardfaced Surface Characteristicsmentioning

confidence: 99%

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A comprehensive review on recent developments in materials and technological parameters for plasma transferred arc hardfacing process

Hirpara

Valaki

Chaudhari

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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Critical equipments of process and heavy engineering industries are prone to significant wear due to intense service conditions. Uneven and uncontrolled wear causes significant changes in dimensional and geometrical accuracies of the part surfaces, which adversely affect the parts’ functionality and service life of these parts. Shorter service life of these equipments and subsequent replacement of the same is one of the serious economic concerns. Hardfacing or hardsurfacing is comparatively an advanced metal deposition technology to deposit a hard and complex metal substrate layer on simple and softer base material surface. This process is gaining popularity at commercial level due to its unique capabilities to develop superior wear, corrosion, and impact resistance properties on worn out parts and offer huge economic advantage as substitute to costly replacement. The primarily aim of this study is to present a comprehensive review of the work done on the probable candidates for deposition materials, and summarize the influence of various process parameters on hard-faced surface characteristics. The critical issues like dilution, debonding, and residual stresses have been discussed for multi-layered hardfacing for iron-, nickel-, and cobalt-based hardfacing materials. The secondary aim of this study is to address practical issues such as selection of proper combination of base-substrate material, to understand the response characteristics of ‘plasma transferred arc hardfacing (PTAHF)’ process to minimize the de-bonding, dilution, and residual stresses and finally to improve quality of hardfacing practice.

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Section: Plasma Transferred Arc Hardfacingmentioning

confidence: 99%

Section: Dilutionmentioning

confidence: 99%

Section: Hardfaced Surface Characteristicsmentioning

confidence: 99%

See 1 more Smart Citation

A comprehensive review on recent developments in materials and technological parameters for plasma transferred arc hardfacing process

Hirpara

Valaki

Chaudhari

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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Tribological and high-temperature mechanical characterization of cold sprayed and PTA-deposited Stellite coatings

Baiamonte

Tuluí

Bartuli

et al. 2019

Surface and Coatings Technology

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Effect of Welding Current on the Dilution and Mechanical Properties of Co–Cr Alloy Stellite-6 Coatings Applied to AISI 4130 Steel

Gonçalves Júnior,

de Oliveira,

Terrones

et al. 2024

Coatings

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Coating welding with cobalt alloys on pipelines is crucial for the offshore industry due to its exceptional resistance to corrosion and wear. In this paper, two welding conditions with different currents were proposed to observe the behavior of the dissimilar joint. The microstructure, mechanical properties, and dilution of a dissimilar material consisting of AISI 4130 steel substrate coated with Stellite 6 alloy were analyzed. Firstly, samples were metallographically prepared for the evaluation of the weld bead and the coating phases using SEM, EDS, and XRD analyses. Then, microstructural characterization was performed qualitatively using confocal microscopy and quantitatively to determine the phase fraction volumes in the dendritic and interdendritic regions, as well as the resulting dilution. Results revealed that varying welding conditions did not significantly affect the hardness of the coatings, which remained within the alloy standard of 36-45 HRC, with microhardness varying by 3%–5% from one condition to another and phase fraction volume showing a variation of 5.6% between welding conditions. On the other hand, experimental results indicated a clear effect of welding current variation on dilution values, with 4.6% for condition 1 and 16.7% for condition 2, allowing for direct proportional relationships to be established, i.e., higher deposition current results in greater dilution.

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Effect of Dilution on Wear Performance of Plasma Transferred Arc Deposited Layers

Cited by 3 publications

References 13 publications

A comprehensive review on recent developments in materials and technological parameters for plasma transferred arc hardfacing process

A comprehensive review on recent developments in materials and technological parameters for plasma transferred arc hardfacing process

Tribological and high-temperature mechanical characterization of cold sprayed and PTA-deposited Stellite coatings

Effect of Welding Current on the Dilution and Mechanical Properties of Co–Cr Alloy Stellite-6 Coatings Applied to AISI 4130 Steel

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