Welding Imperfections in Surfaced Layers

Riabcev, Igor A.; Rosert, Reinhard; Senczenkov, Igor K.; Turyk, E.

doi:10.17729/ebis.2017.3/2

Cited by 3 publications

(2 citation statements)

References 4 publications

(3 reference statements)

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“…These types of cracks (relief-check cracks) enable the relaxation of stresses arising from the solidification and cooling of the layer during the overlay welding process. In surfaced layers with chromium cast iron alloys intended for operation in abrasive wear conditions with low-impact loads, cracks are permissible if they do not penetrate the base material, are not oriented parallel to the fusion surface, and do not lead to the detachment of fragments of the welded layer [30][31][32]. In tribological tests, where abrasion occurs under high pressures or significant impact loads, the uneven wear of the weld deposits could occur as a result of fragments being chipped off [9,30].…”

Section: Macro-and Microstructure Studiesmentioning

confidence: 99%

Comparison of Wear Resistance of Overlay Welded Layers and Thermal Sprayed Coatings in Real Conditions

Szymura,

Gąsiorek,

Czupryński

et al. 2023

Materials

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Tribological tests in real conditions enable obtaining full data on the life of interacting machine parts. This article presents the results of operational tests on the elements of the support ring guidance system in a vertical ball-race mill. The guide and active armour operate under abrasive wear conditions with moderate-impact loads. The wear resistance of elements with overlay welding layers deposited with flux cored wire with a structure of high-alloy chrome cast iron and with a coating flame-sprayed with nickel-based powder was compared. The wear intensity of the overlay weld deposits was much lower than that of the sprayed coatings. The scope of this study also included the analysis of the chemical and phase composition, macro- and microscopic metallographic examinations, and the measurement of the hardness of the deposited layers and coatings.

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Section: Macro-and Microstructure Studiesmentioning

confidence: 99%

Comparison of Wear Resistance of Overlay Welded Layers and Thermal Sprayed Coatings in Real Conditions

Szymura,

Gąsiorek,

Czupryński

et al. 2023

Materials

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“…Coatings (layers) made with different surface engineering technologies with the same surfacing material as well as with the same method using different technological parameters may exhibit different properties. This is due to differences in metallurgical reactions, cooling rates and the dilution [1,[4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Abrasive Wear Resistance of Arc-Sprayed and HVOF-Sprayed Coatings as well as Overlay Welds Made Using Self-Shielded Flux-Cored Wire

SZYMURA,

OCHODEK

2023

METAL Conference Proeedings

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The article presents results of tests concerning the metal-mineral abrasive wear resistance of arc-sprayed coatings with lower and higher air pressure (larger and smaller drops of metal) and HVOF-sprayed coatings deposited using the self-shielded flux cored wire providing the obtainment of the weld deposit of highchromium cast iron Fe15 (in accordance with EN 14700). The significance of influence of the spraying technologies on abrasion resistance was determined using a completely randomized design. The scope of tests also included the analysis of the chemical and phase compositions as well as the microscopic metallographic tests of deposited (sprayed) coatings. For comparison, analogous tests were carried out for the overlay welds applied by self-shielded flux cored arc surfacing using the same flux cored wire.

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Application of design of experiment to a FCAW process

Kordas

Bęczkowski²,

Gucwa

et al. 2019

MATEC Web Conf.

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This work presents the results of research on the anti-abrasion surfacing welds designated to operate under wear conditions. The main purpose of the work was to produce single-layer surface welds by means of semi-automatic hard-facing/surface welding with the use of filler material containing carbide precipitate and with the use of 10 mmand 20 mmwide beads. The samples were subject to visual and penetrant testing and to destructive testing in the form of macro and micro metallographic testing, hardness testing and bend testing with a view to determine the effect which thebeads of various widths have on the analyzed factors.

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Welding Imperfections in Surfaced Layers

Cited by 3 publications

References 4 publications

Comparison of Wear Resistance of Overlay Welded Layers and Thermal Sprayed Coatings in Real Conditions

Comparison of Wear Resistance of Overlay Welded Layers and Thermal Sprayed Coatings in Real Conditions

Comparison of Abrasive Wear Resistance of Arc-Sprayed and HVOF-Sprayed Coatings as well as Overlay Welds Made Using Self-Shielded Flux-Cored Wire

Application of design of experiment to a FCAW process

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