Browse > Article
http://dx.doi.org/10.4150/KPMI.2022.29.1.22

A Study on Powder Size Dependence of Additive Manufactured AlCrFeNi HEA on Its Microstructure and Mechanical Properties  

Choi, Jong Woo (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Park, Hae Jin (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Kang, Gyeol Chan (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Jung, Min Seob (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Oh, Ki Tae (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Hong, Sung Hwan (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Kim, Hyun Gil (Nuclear Fuel Safety Division, Korea Atomic Energy Research Institute)
Kim, Ki Buem (Department of Nanotechnology and Advanced Materials Engineering, Sejong University)
Publication Information
Journal of Powder Materials / v.29, no.1, 2022 , pp. 22-27 More about this Journal
Abstract
Conventionally, metal materials are produced by subtractive manufacturing followed by melting. However, there has been an increasing interest in additive manufacturing, especially metal 3D printing technology, which is relatively inexpensive because of the absence of complicated processing steps. In this study, we focus on the effect of varying powder size on the synthesis quality, and suggest optimum process conditions for the preparation of AlCrFeNi high-entropy alloy powder. The SEM image of the as-fabricated specimens show countless, fine, as-synthesized powders. Furthermore, we have examined the phase and microstructure before and after 3D printing, and found that there are no noticeable changes in the phase or microstructure. However, it was determined that the larger the powder size, the better the Vickers hardness of the material. This study sheds light on the optimization of process conditions in the metal 3D printing field.
Keywords
3D printing; Additive manufacturing; High entropy alloy; Microstructure; Vickers hardness;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. W. Yeh, Y. L. Chen, S. J. Lin, S. K. Chen: Mater. Sci. Forum, 560 (2007) 1.   DOI
2 J. Yeh, S. Chen, S. Lin, J. Gan, T. Chin, T. Shun, C. Tsau and S. Chang: Adv. Eng. Mater., 6 (2004) 299.   DOI
3 O. N. Senkov, G. B. Wilks, J. M. Scott and D. B. Miracle: Intermetallics, 19 (2011) 698.   DOI
4 Y. J. Zhou, Y. Zhang, Y. L. Wang and G. L. Chen: Appl. Phys. Lett., 90 (2007) 181904.   DOI
5 V. Bhavar, P. Kattire, V. Patil, S. Khot, K. Gujar and R. Singh: Addit. Manuf. Handbook, CRC Press, (2017) 251.
6 E. Jumaev, M. A. Abbas, S. C. Mun, G. Song, S.-J. Hong and K. B. Kim: J. Alloys Compd., 868 (2021) 159217.   DOI
7 B. Cantor, I. T. H. Chang, P. Knight and A. J. B. Vincent: Mater. Sci. Eng. A., 375 (2004) 213.
8 J.-W. Yeh: Eur. J. Control, 31 (2006) 633.
9 H. G. Kim, I. H. Kim, Y. I. Jung, D. J. Park, J. Y. Park and Y. H. Koo: J. Nucl. Mater. 465 (2015) 531.   DOI
10 M. Javidani, J. Arreguin-Zavala, J. Danovitch, Y. Tian and M. Brochu: J. Therm. Spray Technol., 26 (2017) 587.   DOI