Effect of Post-Heat Treatment on the Wear Properties of AlSi10Mg Alloy Manufactured by Selective Laser Melting

• Autorzy: Park Tae-Hyun , Baek Min-Seok , Sohn Yongho , Lee Kee-Ahn

Identyfikatory

DOI

10.24425/amm.2020.133220

• Języki publikacji: EN

Abstrakty

EN

Microstructure and wear property of AlSi10Mg alloy manufactured by selective laser melting (SLM) were investigated. Also, the effect of post heat treatment on the mechanical and wear properties was examined. Two kinds of heat treatments (direct aging (DA) and T6) were separately conducted to SLM AlSi10Mg alloy. As-built alloy had a cellular structure formed inside the moltenpool. Eutectic Si was also observed at the cellular boundary in as-built alloy. After DA heat treatment, the cellular structure still remained, and a large amount of nano-size Si particles were newly formed inside the cell structure. Both molten pool and cellular structure disappeared, and the size of Si increased in T6 alloy. The values of Vickers hardness measured as 139.4 HV (DA alloy), 128.0 HV (As-built alloy) and 85.1 HV (T6 alloy), respectively. However, concerning to wear property, T6 alloy showed better wear resistance than other alloys. The correlation between microstructure and wear mechanism of SLM AlSi10Mg alloy was also discussed.

Słowa kluczowe

EN

selective laser melting; SLM; AlSi10Mg; heat treatment; microstructure; wear

• 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: 1073--1080
• Opis fizyczny: Bibliogr. 24 poz., fot., rys., tab.

Twórcy

autor

Park Tae-Hyun

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

autor

Baek Min-Seok

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

autor

Sohn Yongho

• University of Central Florida, Advanced Materials Processing and Analysis Center, Orlando, USA
• University of Central Florida, Department of Materials Science and Engineering, Orlando, USA

autor

Lee Kee-Ahn

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

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Uwagi

EN

1. This work was supported Korea Institute for Advancement of Technology (KIAT) gran 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).