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Comparison of the performance properties of commercially produced roller cone bit coatings

Sylwia Koczkodaj
Sylwia Koczkodaj
, 
Jaroslaw Mizera
Jaroslaw Mizera
, 
Dorota Moszczynska
Dorota Moszczynska
, 
Joanna Zdunek
Joanna Zdunek
, 
Magdalena Plocinska
Magdalena Plocinska
, 
Jacek Szpyrka
Jacek Szpyrka
, 
Marek Burkot
Marek Burkot
 oraz 
Mateusz Szpak
Mateusz Szpak
   | 04 sie 2023
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Data publikacji: 04 sie 2023
Zakres stron: 110 - 123
Otrzymano: 13 kwi 2023
Przyjęty: 29 maj 2023
DOI: https://doi.org/10.2478/msp-2023-0008
Słowa kluczowe
© 2023 Sylwia Koczkodaj et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig 1.

Types of roller cone bits: (a) milled-tooth bits, (b) insert-tooth bits – Glinik Drilling Tools product catalog [2]
Types of roller cone bits: (a) milled-tooth bits, (b) insert-tooth bits – Glinik Drilling Tools product catalog [2]

Fig. 2.

Different types of teeth and arms reinforcements [2]. The arrows mark the locations of the overlays
Different types of teeth and arms reinforcements [2]. The arrows mark the locations of the overlays

Fig. 3.

The samples submitted for testing by Glinik Drilling Tool: (a) gas welding; (b) plasma transferred arc welding
The samples submitted for testing by Glinik Drilling Tool: (a) gas welding; (b) plasma transferred arc welding

Fig. 4.

Cross-section of the coating made by the gas weld surfacing
Cross-section of the coating made by the gas weld surfacing

Fig. 5.

Mapping of key elements of the gas weld surfacing layer
Mapping of key elements of the gas weld surfacing layer

Fig. 6.

Spherical and polyhedral particles in the gas weld surfacing
Spherical and polyhedral particles in the gas weld surfacing

Fig. 7.

SEM micrographs of overlay made by gas welding surface with EDS spot analysis
SEM micrographs of overlay made by gas welding surface with EDS spot analysis

Fig. 8.

Cross-section of the coating made by the PTA weld surfacing
Cross-section of the coating made by the PTA weld surfacing

Fig. 9.

Mapping of key elements of the PTA weld surfacing layer
Mapping of key elements of the PTA weld surfacing layer

Fig. 10.

The microstructure of the coating is made by PTA weld surfacing with the distinction of three zones occurring in the layer
The microstructure of the coating is made by PTA weld surfacing with the distinction of three zones occurring in the layer

Fig. 11.

SEM micrographs of overlay made by PTA surface with EDS spot analysis
SEM micrographs of overlay made by PTA surface with EDS spot analysis

Fig. 12.

Results of XRD analyses on sample cross-section made by gas weld surfacing
Results of XRD analyses on sample cross-section made by gas weld surfacing

Fig. 13.

Results of XRD analyses on sample cross-section made by PTA
Results of XRD analyses on sample cross-section made by PTA

Fig. 14.

Microhardness distribution on sample cross-section made by gas weld surfacing (0mm-joint)
Microhardness distribution on sample cross-section made by gas weld surfacing (0mm-joint)

Fig. 15.

Microhardness distribution on sample cross-section made by PTA weld surfacing (0mm-joint)
Microhardness distribution on sample cross-section made by PTA weld surfacing (0mm-joint)

Fig. 16.

Comparison of the impact test results of samples made by Gas welding and PTA
Comparison of the impact test results of samples made by Gas welding and PTA

Fig. 17.

Comparison of the relative abrasion resistance of samples made by gas welding and PTA
Comparison of the relative abrasion resistance of samples made by gas welding and PTA

HV 0.1 microhardness measurements

Basis (steel) Matrix Strengthening phase
Gas Welding
average 567.0 1028.2 1699.8
SD 23.6 60.6 245.4
PTA
average 352.6 714.2 3707.6
SD 26.7 162.4 237.2

EDS spot analysis of the areas in Figure 7 (weight %)

C-K Fe-K Ni-K Co-L W-M
Base(8)_pt1 2.2 2.6 0.8 94.4
Base(8)_pt2 3.5 1.6 0.2 94.7
Base(8)_pt3 1.8 3.5 0.3 94.4
Base(8)_pt4 2.9 2.2 0.6 94.3

EDS spot analysis of the areas in Figure 11(weight %)

C-K Cr-K Fe-K Ni-K W-L
Base(49)pt1 6.6 0.3 1.5 18.4 73.2
Base(49)_pt2 3.6 0.2 0.9 13.8 81.6
Base(49)_pt3 5.9 0.2 0.7 8.8 84.5
Base(49)_pt4 4.3 0.2 0.9 12.6 81.9
Base(49)_pt5 3.8 0.3 1.1 14.9 79.9
Base(49)_pt6 3.7 0.2 0.9 16.0 79.2
Base(49)_pt7 5.4 0.1 94.3
Base(49)_pt8 5.4 0.2 88.9
eISSN:
2083-134X
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Materials Sciences, other, Nanomaterials, Functional and Smart Materials, Materials Characterization and Properties
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