Hardfacing of mild steel with wear-resistant Ni-based powders containing tungsten carbide particles using powder plasma transferred arc welding technology

• Autorzy: Appiah Augustine Nana Sekyi , Bialas Oktawian , Żuk Marcin , Czupryński Artur , Konadu Sasu David , Adamiak Marcin

Identyfikatory

DOI

10.2478/msp-2022-0033

• Języki publikacji: EN

Abstrakty

EN

This study explores the use of powder plasma transferred arc welding (PPTAW) as a surface layer deposition technology to form hardfaced coatings to improve upon the wear resistance of mild steel. Hardfaced layers were prepared using the PPTAW process with two different wear-resistant powders: PG 6503 (NiSiB + 60% WC) and PE 8214 (NiCrSiB + 45% WC). By varying the PPTAW process parameters of plasma gas flow rate (PGFR) and plasma arc current, hardfaced layers were prepared. Microscopic examinations, penetration tests, hardness tests, and abrasive wear resistance tests were carried out on the prepared samples. Hardfacings prepared with PG 6503 had a hardness of 46.3–48.3 HRC, while those prepared with PE 8214 had a hardness of 52.7–58.3 HRC. The microhardness of the matrix material was in the range of 573.3–893.0 HV, while that of the carbides was in the range of 2128.7–2436.3 HV. The abrasive wear resistance of the mild steel was improved after deposition of hardfaced layers by up to 5.7 times that of abrasion-resistant heat-treated steel, Hardox 400, having a nominal hardness of approximately 400 HV. The hardness and wear resistance were increased upon addition of Cr as an alloying element. Increasing the PGFR increased the hardness and wear resistance of the hardfacings, as well as increasing the number of surface cracks. Increasing the plasma transferred arc (PTA) current resulted in hardfacings with fewer cracks but lowered the wear resistance.

Słowa kluczowe

EN

microhardness; microstructure; mechanical properties; scanning electron microscopy; dilution; heat affected zone

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2022
• Tom: Vol. 40, No. 3
• Strony: 42--63
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Appiah Augustine Nana Sekyi

• Materials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, 18A Konarskiego Street, 44-100 Gliwice, Poland

autor

Bialas Oktawian

• Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 18A Konarskiego Street, 44-100 Gliwice, Poland

autor

Żuk Marcin

• Welding Department, Faculty of Mechanical Engineering, Silesian University of Technology, 18A Konarskiego Street,44-100 Gliwice, Poland

autor

Czupryński Artur

• Welding Department, Faculty of Mechanical Engineering, Silesian University of Technology, 18A Konarskiego Street,44-100 Gliwice, Poland

autor

Konadu Sasu David

• Department of Materials Engineering, College of Engineering, PMB UPO, KNUST Kumasi, Ghana

autor

Adamiak Marcin

• Materials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, 18A KonarskiegoStreet, 44-100 Gliwice, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).