Characterization of Ca Precipitation in Al-Mg Alloys Containing a Trace of Ca During Homogenization

• Autorzy: Ha Seong-Ho , Shin Young-Chul , Kim Bong-Hwan , Yoon Young-Ok , Lim Hyun-Kyu , Lim Sung-Hwan , Kim Shae K.

Identyfikatory

DOI

10.24425/amm.2021.136405

• Języki publikacji: EN

Abstrakty

EN

In this study, precipitation of Ca in Al-Mg alloys containing a trace of Ca during homogenization was investigated using a transmission electron microscope (TEM) and calculated phase diagrams. TEM result indicated that the Ca-based particles found in the examined sample are Ca₇Mg_7.5Si₁₄. From the calculation of Scheil-Gulliver cooling, it was found that the Ca was formed as Al₄Ca and C36 laves phases with Mg₂Si and Al₁₃Fe₄ from other impurities phase during solidification. No Ca-Mg-Si ternary phase existed at the homogenization temperature in the calculated phase diagram. From the phase diagram of Al-Al₄Ca-Mg₂Si three-phase isothermal at 490°C, it was shown that Ca₇Mg₆Si₁₄ phase co-exists with Al, Mg₂Si and Al₄Ca in the largest region and with only Al and Mg₂Si in Al₄Ca-poor regions. It was thought that the Ca₇Mg₆Si₁₄ ternary phase was formed by the interaction between Mg₂Si and Al₄Ca considering that the segregation can occur throughout the entire microstructures.

Słowa kluczowe

EN

Al-Mg system; precipitation; Mg+Al2Ca mater alloy; transmission electron microscope; phase diagram

• 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. 4
• Strony: 959--962
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., tab.

Twórcy

autor

Ha Seong-Ho

• Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-4718-8421

autor

Shin Young-Chul

• Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-9527-9168

autor

Kim Bong-Hwan

• Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-8273-8281

autor

Yoon Young-Ok

• Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-2239-6064

autor

Lim Hyun-Kyu

• Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea

• https://orcid.org/0000-0002-3086-3515

autor

Lim Sung-Hwan

• Kangwon National University, Department of Advanced Materials Science and Engineering, Chuncheon 24341, Republic of Korea

• https://orcid.org/0000-0001-8943-1007

autor

Kim Shae K.

• Korea Institute of Industrial Technology (KITECH), Incheon 21999, Republic of Korea

• https://orcid.org/0000-0001-9450-4944

Bibliografia

• [1] J. R. Davis, ASM International, Aluminum and Aluminum Alloys, Materials Park 1993.
• [2] G. Wu, K. Dash, M. L. Galano, K.A.Q. O’Reilly, Corros. Sci. 155, 97 (2019).
• [3] B. H. Kim, S. H. Ha, Y. O. Yoon, H. K. Lim, S. K. Kim, D. H. Kim, Mater. Lett. 228, 108 (2018).
• [4] S. H. Ha, B. H. Kim, Y. O. Yoon, H. K. Lim, T. W. Lee, S. H. Lim, S. K. Kim, Sci. Adv. Mater. 10, 697 (2018).
• [5] D. Ajmera, E. Panda, Corros. Sci. 102, 425 (2016).
• [6] S. H. Ha, J. K. Lee, S. K. Kim, Mater. Trans. 49, 1081 (2008).
• [7] S. H. Ha, B. H. Kim, Y. O. Yoon, H. K. Lim, T. W. Lee, S. H. Lim, S. K. Kim, Int. J. Metalcast. 13, 121 (2019).
• [8] J. W. Jeong, J. S. Im, K. Song, M. H. Kwon, S. K. Kim, Y. B. Kang, S. H. Oh, Acta Mater. 61, 3267 (2013).
• [9] K. Ozturk, L. Q. Chen, Z. K. Liu, J. Alloys Compd. 340, 199 (2002).
• [10] C. W. Bale, E. Bélisle, P. Chartrand, S. A. Decterov, G. Eriksson, A. E. Gheribi, K. Hack, I. H. Jung, Y. B. Kang, J. Melançon, A. D. Pelton, S. Petersen, C. Robelin, J. Sangster, P. Spencer, M. A. Van Ende, Calphad 54, 35 (2016).

Uwagi

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