Effect of Process Control Agent on the Microstructure of Ni-Based ODS Superalloy Produced by Mechanical Alloying and Sintering

• Autorzy: Han Ju-Yeon , Kang Hyunji , Oh Sung-Tag

Identyfikatory

DOI

10.24425/amm.2019.129478

• Języki publikacji: EN

Abstrakty

EN

The effects of different types of process control agents (PCA) on the microstructure evolution of Ni-based oxide dispersion-strengthened superalloy have been investigated. Alloy synthesis was performed on elemental powders having a nominal composition of Ni-15Cr-4.5Al-4W-2.5Ti-2Mo-2Ta-0.15Zr-1.1Y₂O₃ in wt % using high energy ball milling for 5 h. The prepared powders are consolidated by spark plasma sintering at 1000°C. Results indicated that the powder ball-milled with ethanol as PCA showed large particle size, low carbon content and homogeneous distribution of elemental powders compared with the powder by stearic acid. The sintered alloy prepared by ethanol as PCA exhibited a homogeneous microstructure with fine precipitates at the grain boundaries. The microstructural characteristics have been discussed on the basis of function of the PCA.

Słowa kluczowe

EN

Ni-based superalloy; process control agents; mechanical alloying; spark plasma sintering; microstructure

• 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: 949--952
• Opis fizyczny: Bibliogr. 14 poz., fot., rys., tab.

Twórcy

autor

Han Ju-Yeon

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

autor

Kang Hyunji

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

autor

Oh Sung-Tag

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

Bibliografia

• [1] J. S. Benjamin, Metall. Trans. 1, 2943 (1970).
• [2] C. W. Park, J. M. Byun, J. K. Park, Y. D. Kim, J. Korean Powder Metall. Inst. 23, 61 (2016).
• [3] D. Häussler, B. Reppich, M. Bartsch, U. Messerschmidt, Mater. Sci. Eng. A309-310, 500 (2001).
• [4] S. K. Kang, R. C. Benn, Metall. Trans. A 18, 747 (1987).
• [5] C. Suryanarayana, Prog. Mater. Sci. 46, 1 (2001).
• [6] P. S. Gilman, J. S. Benjamin, Ann. Rev. Mater. Sci. 13, 279 (1983).
• [7] L. Ma, B. S.-J. Kang, M. A. Alvin, C. C. Huang, KONA Powder Part. J. 31, 146 (2014).
• [8] L. Shaw, M. Zawrah, J. Villegas, H. Luo, D. Miracle, Metall. Mater. Trans. A 34, 159 (2003).
• [9] Y. D. Kim, J. Y. Chung, J. Kim, H. Jeon, Mater. Sci. Eng. A291, 17 (2000).
• [10] C. L. Chen, Y. M. Dong, Mater. Sci. Eng. A528, 8374 (2011).
• [11] T. Peng, I. Chang, Powder Techn. 266, 7 (2014).
• [12] W. Lee, S. I. Kwun, J. Alloys Compd. 240, 193 (1996).
• [13] S. M. S. Aghamiri, H. R. Shahverdi, S. Ukai, N. Oono, K. Taya, S. Miura, S. Hayashi, T. Okuda, Mater. Charact. 100, 135 (2015).
• [14] S .M. S. Aghamiri, H. R. Shahverdi, S. Ukai, N. Oono, M. N. Ahmadabadi, T. Okuda, Mater. Lett. 161, 568 (2015).

Uwagi

EN

1. This work was supported by the Technology Innovation Program (10048158, Development of 980°C grade superalloys strengthened by multi-component nano-oxides for commercialization of core materials in the field of the defense industry) funded by the Ministry of Trade, Industry and Energy (MI, Korea).

PL

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