Effect of High Frequency Heat Treatment on the Microstructure and Macroscopic Properties of WC-50Ni+Stellite 1 Coating Layer Fabricated by HVOF Spray Process

• Autorzy: Ham Gi-Su , Wi Dong-Yeol , Park Sun-Hong , Lee Kee-Ahn

Identyfikatory

DOI

10.24425/amm.2020.133222

• Języki publikacji: EN

Abstrakty

EN

The microstructure and macroscopic properties of WC-50Ni+stellite 1(Co-Cr-W, ST1) coating layer fabricated by HVOF spray have been investigated. WC-50Ni powder and ST1 powders were mixed in the ratio of 1:0 and 5:5 wt.%, respectively. Argon heat treatment (Ar) and high-frequency heat treatment (H.F.) were conducted on the coating materials. WC was decomposed in the Ar heat treatment specimen, but decomposition of WC was not observed in the H.F. heat treatment specimen. Hardness was measured for as-sprayed WC-50Ni (821.5Hv) and as-sprayed WC-50Ni+ST1 (668.1 Hv). Hardness of Ar heat treatment specimen was reduced by about 14~18% than that of the as-sprayed coating layers. However, when the H.F. heat treatment was performed, the hardness inversely increased by about 6~10% than the as-sprayed coating layer. Based on these results, the method to improve the mechanical property of HVOF sprayed WC-50Ni+ST1 coating layer has also been also discussed.

Słowa kluczowe

EN

HVOF spray; WC-50Ni; Stellite 1; composite coating; high frequency heat treatment

• 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: 2020
• Tom: Vol. 65, iss. 3
• Strony: 1087--1092
• Opis fizyczny: Bibliogr. 6 poz., fot., rys., tab.

Twórcy

autor

Ham Gi-Su

• INHA University, Department of Material Science and Engineering, Incheon 22212, Republic of Korea

autor

Wi Dong-Yeol

• INHA University, Department of Material Science and Engineering, Incheon 22212, Republic of Korea

autor

Park Sun-Hong

• RIST, Pohang, Republic of Korea

autor

Lee Kee-Ahn

• INHA University, Department of Material Science and Engineering, Incheon 22212, Republic of Korea

Bibliografia

• [1] M. X. Yao, J. B. C. Wu, R. Liu, Mater. Sci. Eng. A 407, 299 (2005).
• [2] W. Zhou, J. Zhou, C. Deng, K. Zeng, Y. Li, Ceram. Int.43 9390 (2017).
• [3] T. S. Sidhu, R. D. Agrawal, S. Prakash, Surf. Coat. Technol. 58, 73 (1993).
• [4] J. S. Yu, H. J. Kim, I. H. Oh, K. A. Lee, J. Korean Powder Metall. Inst. 19, 110 (2012).
• [5] H. C. Dustman, High frequency heat treated apparatus, US2777041A (1953).
• [6] D. A. Stewart, P. H. Shipway, D. G. McCartney, Surf. Coat. Technol. 105, 13 (1998)

Uwagi

EN

1. This study was supported by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) (P0002007, The Competency Development Program for Industry Specialist).

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).