Effect of Output Conditions on Microstructure and Properties of SKD61 Laser Cladding

• Autorzy: Kim Cheol-Woo , Yoo Hyo-Sang , Hong Sung-Kil

Identyfikatory

DOI

10.24425/amm.2024.147779

• Języki publikacji: EN

Abstrakty

EN

This study investigated the effect of cladding on tool steel (SKD61) by using 5%Cr-1.5%Mo-Fe powder (SKD61), which is expected to be economically effective when used to manufacture and mend die-casting parts. The cladding conditions were as follows: the distance between the coaxial powder supply head and the substrate surface was 20 mm, and Ar was used as the supply gas. The laser outputs applied in the cladding procedure were 3, 4, and 5 kW. The microstructure of the heat-affected zone in the processed specimens was analyzed, and the macrostructure and morphology of the substrate material were studied. Specimen hardness measurements were performed at intervals of 0.1 mm from the substrate surface to the core. As the laser output increased from 3 to 4 and 5 kW, the dilution rate increased from 10.6% to 11.8 and 13.2%. It was confirmed that the fraction of carbides increased as the laser output increased from 3 kW to 5 kW.

Słowa kluczowe

EN

laser cladding; micro vickers hardness; microstructure; mold restore

• 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: 2024
• Tom: Vol. 69, iss. 1
• Strony: 29--32
• Opis fizyczny: Bibliogr. 16 poz., fot., rys., wzory

Twórcy

autor

Kim Cheol-Woo

• Korea Institute of Industrial Technology, Suncheon, Korea

• https://orcid.org/0000-0002-9007-0269

autor

Yoo Hyo-Sang

• Korea Institute of Industrial Technology, Suncheon, Korea

• https://orcid.org/0000-0002-7715-744X

autor

Hong Sung-Kil

• Chonnam National University, School of Materials Science and Engineering, 61186, Korea

• https://orcid.org/0000-0001-6890-3626

Bibliografia

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Uwagi

This study has been conducted with the support of the Korea Institute of Industrial Technology as “Development of Core Technologies for a Smart Mobility (kitech JA-23-0005)”.