Laser Cladding of WC/T-800 Cermet: Fabrication, Microstructure and Wear Properties

• Autorzy: Kim Kyoung-Wook , Kim Young-Kyun , Park Sun-Hong , Lee Kee-Ahn

Identyfikatory

DOI

10.24425/amm.2021.136367

• Języki publikacji: EN

Abstrakty

EN

This study fabricated a WC/T-800 cermet coating layer with Co-Mo-Cr (T-800) powder and WC powder using laser cladding, and analyzed its microstructure, hardness and wear properties. For comparison, casted bulk T-800 was used. Laser cladded WC/T-800 cermet coating layer showed circular WC phases in the Co matrix, and dendritic laves phases. The average laves phase size in the cermet coating layer and bulk T-800 measured as 7.9 µm and 60.6 µm, respectively, indicating that the cermet coating layer had a relatively finer laves phase. Upon conducting a wear test, the cermet coating layer added with WC showed better wear resistance. In the case of laser cladded WC/T-800 cermet coating layer, abrasion wear was observed; on the contrary, the bulk T-800 showed pulled out laves phases. Based on the above findings, the WC/T-800 cermet coating layer using laser cladding and the relationship between its microstructure and wear behavior were discussed.

Słowa kluczowe

EN

CoMoCr alloy; WC; cermet; laser cladding; microstructure; wear properties

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 3
• Strony: 713--717
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Kim Kyoung-Wook

• Inha University, Dept. Mater. Sci. Eng., Incheon 22212, Republic of Korea

autor

Kim Young-Kyun

• Inha University, Dept. Mater. Sci. Eng., Incheon 22212, Republic of Korea

autor

Park Sun-Hong

• POSCO Technical Research Laboratories, Gwangyang 57807, Republic of Korea

autor

Lee Kee-Ahn

• Inha University, Dept. Mater. Sci. Eng., Incheon 22212, Republic of Korea

• https://orcid.org/0000-0003-2149-3871

Bibliografia

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Uwagi

1. The authors gratefully acknowledge the support of the POSCO Technical Research Laboratories, Pohang, Korea and Korea Institute for Advancement on Technology (KIAT) grant funded by the Korea Government (MOTIE) (P0002007, The Competency Development Program for Industry Specialist).

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).