Study of microstructural defects of drill bit teeth using microscopic methods

Odiljon Abdurakhmonov, Mastura Kh. ARIPOVA, Orifjon O. KHOMIDOV, Bakhtiyar T. ZAKHIDOV, Amir Abidov

Kimyo va kimyo texnologiyasi · 2026-yil

Annotatsiya

The aim of this study is to investigate microstructural defects in drill bit cutting elements, including milled teeth and WC–Co cemented carbide inserts, to clarify their morphology, chemical–phase characteristics, and potential contribution to manufacturing-related defects. To achieve this goal, the study applied a combined approach based on optical microscopy and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM–EDS). First, the study examined surface and microstructural features, such as pores, depressions, and local heterogeneities formed during manufacturing. Then, it conducted detailed SEM–EDS analyses of selected local regions, including crack initiation sites. As a result, the study revealed that cutting elements from a defective batch exhibit pronounced microstructural and chemical–phase heterogeneity. Moreover, defect regions show local redistribution of the WC carbide phase and the cobalt binder, as well as increased oxygen content, indicating the presence of thin oxide and adsorbed surface layers. Consequently, these microstructural features may act as local stress concentrators and reduce the structural integrity of cutting elements already during manufacturing. The benefits of this study include improved understanding of defect formation mechanisms and guidance for optimizing technological processes in drill bit production.

Maqola ma’lumotlari
MualliflarOdiljon Abdurakhmonov, Mastura Kh. ARIPOVA, Orifjon O. KHOMIDOV, Bakhtiyar T. ZAKHIDOV, Amir Abidov
JurnalKimyo va kimyo texnologiyasi
NashriyotТошкент кимё-технология институти
ISSN1992-9498, 2181-1121
Nashr sanasi2026-03-27
Jild2026
Son1
TilIngliz
Ilmiy sohaKimyo
DOI10.70189/1992-9498.1716
Indeksga qo‘shilgan2026-09-02

DOI: 10.70189/1992-9498.1716 · Maqolaning asl sahifasi · PDF

Ilmiy soha

Kimyo

Iqtibos keltirish

APAOdiljon Abdurakhmonov, Mastura Kh. ARIPOVA, Orifjon O. KHOMIDOV, Bakhtiyar T. ZAKHIDOV, & Amir Abidov (2026). STUDY OF MICROSTRUCTURAL DEFECTS OF DRILL BIT TEETH USING MICROSCOPIC METHODS. Kimyo va kimyo texnologiyasi, 2026(1). https://doi.org/10.70189/1992-9498.1716
GOST (OAK)Odiljon Abdurakhmonov va b. STUDY OF MICROSTRUCTURAL DEFECTS OF DRILL BIT TEETH USING MICROSCOPIC METHODS // Kimyo va kimyo texnologiyasi. – 2026. – T. 2026, № 1. – DOI: 10.70189/1992-9498.1716.
MLAOdiljon Abdurakhmonov, Mastura Kh. ARIPOVA, Orifjon O. KHOMIDOV, Bakhtiyar T. ZAKHIDOV, and Amir Abidov. “STUDY OF MICROSTRUCTURAL DEFECTS OF DRILL BIT TEETH USING MICROSCOPIC METHODS.” Kimyo va kimyo texnologiyasi, 2026(1), 2026. https://doi.org/10.70189/1992-9498.1716
ChicagoOdiljon Abdurakhmonov, Mastura Kh. ARIPOVA, Orifjon O. KHOMIDOV, Bakhtiyar T. ZAKHIDOV, and Amir Abidov. “STUDY OF MICROSTRUCTURAL DEFECTS OF DRILL BIT TEETH USING MICROSCOPIC METHODS.” Kimyo va kimyo texnologiyasi, 2026(1) (2026). https://doi.org/10.70189/1992-9498.1716
HarvardOdiljon Abdurakhmonov, Mastura Kh. ARIPOVA, Orifjon O. KHOMIDOV, Bakhtiyar T. ZAKHIDOV, and Amir Abidov (2026) ‘STUDY OF MICROSTRUCTURAL DEFECTS OF DRILL BIT TEETH USING MICROSCOPIC METHODS’, Kimyo va kimyo texnologiyasi, 2026(1). https://doi.org/10.70189/1992-9498.1716
BibTeX
@article{odiljonabdurakhmonov2026,
  title = {STUDY OF MICROSTRUCTURAL DEFECTS OF DRILL BIT TEETH USING MICROSCOPIC METHODS},
  author = {Odiljon Abdurakhmonov and Mastura Kh. ARIPOVA and Orifjon O. KHOMIDOV and Bakhtiyar T. ZAKHIDOV and Amir Abidov},
  journal = {Kimyo va kimyo texnologiyasi},
  year = {2026},
  volume = {2026},
  number = {1},
  doi = {10.70189/1992-9498.1716},
  url = {https://doi.org/10.70189/1992-9498.1716}
}

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