Effect of Process Variables on Friction Stirred Microstructure and Surface Hardness of AZ31 Magnesium Alloy

• Autorzy: Kim Jae-Yeon , Hwang Jung-Woo , Lee Seung-Mi , Hyun Chang-Young , Park Ik-Keun , Byeon Jai-Won

Identyfikatory

DOI

10.24425/amm.2019.129470

• Języki publikacji: EN

Abstrakty

EN

Effects of various friction stir processing (FSP) variables on the microstructural evolution and microhardness of the AZ31 magnesium alloy were investigated. The processing variables include rotational and travelling speed of the tool, kind of secondphase (i.e., diamond, Al₂ O₃ , and ZrO₂ ) and groove depth (i.e., volume fraction of second phase). Grain size, distribution of second phase particle, grain texture, and microhardness were analyzed as a function of the FSP process variables. The FSPed AZ31 com-posites fabricated with a high heat input condition showed the better dispersion of particle without macro defect. For all composite specimens, the grain size decreased and the microhardness increased regardless of the grooved depth compared with that of the FSPed AZ31 without strengthening particle, respectively. For the AZ31/diamond composite having a grain size of about 1 μm, microhardness (i.e., about 108 Hv) was about two times higher than that of the matrix alloy (i.e., about 52 Hv). The effect of second phase particle on retardation of grain growth and resulting hardness increase was discussed.

Słowa kluczowe

EN

friction stir process; AZ31 alloy; diamond particle; process variable; grain size

• 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: 2019
• Tom: Vol. 64, iss. 3
• Strony: 907--911
• Opis fizyczny: Bibliogr. 7 poz., fot., rys.

Twórcy

autor

Kim Jae-Yeon

• Seoul National University of Science and Technology, Convergence Institute of Biomedical Engineering and Biomaterials, Program of Materials Science & Engineering, Seoul, 01811, Korea

autor

Hwang Jung-Woo

• Seoul National University of Science and Technology, Department of Materials Science & Engineering, Seoul, 01811, Korea

autor

Lee Seung-Mi

• Seoul National University of Science and Technology, Department of Materials Science & Engineering, Seoul, 01811, Korea

autor

Hyun Chang-Young

• Seoul National University of Science and Technology, Department of Materials Science & Engineering, Seoul, 01811, Korea

autor

Park Ik-Keun

• Seoul National University of Science and Technology, Department of Mechanical & Automotive Engineering, Seoul, 01811, Korea

autor

Byeon Jai-Won

• Seoul National University of Science and Technology, Department of Materials Science & Engineering, Seoul, 01811, Korea

Bibliografia

• [1] W. Wen, W. Kuaishe, G. Qiang, W. Nan, Rare Met. Mater. Eng. 41 (9), 1522-1526, (2012).
• [2] J. A. Del Valle, P. Rey, D. Gesto, D. Verdera, J. A. Jimenez, O. A. Ruano, Mater. Sci. Eng. A 628, 198-206, (2015).
• [3] J. Y. Kim, J. W. Hwang, H. Y. Kim, S. M. Lee, W. S. Jung, J. W. Byeon, Arch. Metall. Mater. 62, 2B, 1039-1042, (2017).
• [4] M. Azizieh, A. H. Kokabi, P. Abachi, Mater. Des. 32, 2034-2041 (2011).
• [5] G. M. Reddy, A. S. Rao, K. S. Rao, Trans. Indian Inst. Met. 66 (1), 13-24 (2013).
• [6] M. Azizieha, M. Mazaheri, Z. Balak, H. Kafashan, H. S Kim, Mater. Sci. Eng. A 712, 655-662, (2018).
• [7] F. Khodabakhshi, A. Simchi, A. H. Kokabi, M. Sadeghahmadi, A. P. Gerlich, Mater. Sci. Technol. 31 (4), 426-435, (2015).

Uwagi

EN

1. This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20181510102130).

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).