소결 조건에 따른 FeCrMnNiCo 고엔트로피 합금의 미세조직 변화
Effect of Sintering Conditions on the Microstructure of an FeCrMnNiCo High-Entropy Alloy
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We investigated the microstructure of an FeCrMnNiCo alloy fabricated by spark plasma sintering under different sintering temperatures (1000–1100°C) and times (1–600 s). All sintered alloys consisted of a single face-centered cubic phase. As the sintering time or temperature increased, the grains of the sintered alloys became partially coarse. The formation of Cr7C3 carbide occurred on the surface of the sintered alloys due to carbon diffusion from the graphite crucible. The depth of the layer containing Cr7C3 carbides increased to ~110 μm under severe sintering conditions (1100°C, 60 s). A molten zone was observed on the surface of the alloys sintered at higher temperatures (>1060°C) due to severe carbon diffusion that reduced the melting point of the alloy. The porosity of the sintered alloys decreased with increasing time at 1000°C, but increased at higher temperatures above 1060°C due to melting-induced porosity formation.
Abstract
We investigated the microstructure of an FeCrMnNiCo alloy fabricated by spark plasma sintering under different sintering temperatures (1000–1100°C) and times (1–600 s). All sintered alloys consisted of a single face-centered cubic phase. As the sintering time or temperature increased, the grains of the sintered alloys became partially coarse. The formation of Cr7C3 carbide occurred on the surface of the sintered alloys due to carbon diffusion from the graphite crucible. The depth of the layer containing Cr7C3 carbides increased to ~110 μm under severe sintering conditions (1100°C, 60 s). A molten zone was observed on the surface of the alloys sintered at higher temperatures (>1060°C) due to severe carbon diffusion that reduced the melting point of the alloy. The porosity of the sintered alloys decreased with increasing time at 1000°C, but increased at higher temperatures above 1060°C due to melting-induced porosity formation.
참고문헌 (31)
- J. -W. Yeh, , Adv. Eng. Mater, 6, pp.299~ (2004)
- B. Cantor, , Mater. Sci. Eng. A, 375, pp.213~ (2004)
- Y. Zhang, , Adv. Eng. Mater, 10, pp.534~ (2008)
- J. -W. Yeh, , JOM, 67, pp.2254~ (2015)
- D. B. Miracle, , Acta Mater, 122, pp.448~ (2017)
- E. P. George, , Acta Mater, 188, pp.435~ (2020)
- B. Gludovatz, , Science, 345, pp.1153~ (2014)
- Z. J. Zhang, , Nat. Commun, 6, pp.10143~ (2015)
- O. N. Senkov, , J. Alloys. Compd, 509, pp.6043~ (2011)
- Z. Wang, , J. Alloys Compd, 781, pp.734~ (2019)
- J. Y. He, , Intermetallics, 55, pp.9~ (2014)
- B. Schuh, , Acta Mater, 96, pp.258~ (2015)
- F. Otto, , Acta Mater, 112, pp.40~ (2016)
- E. J. Pickering, , Scr. Mater, 113, pp.106~ (2016)
- N. D. Stepanov, , J. Alloys Compd, 687, pp.59~ (2016)
- C. Wang, , J. Mater. Res. Technol, 15, pp.5187~ (2021)
- Q. Ye, , Appl. Surf. Sci, 396, pp.1420~ (2017)
- Y. J. Li, , Appl. Phys. Lett, 119, pp.201910~ (2021)
- L. L. Xiao, , Mater. Des, 194, pp.108895~ (2020)
- C. Wagner, , Int. J. Plast, 166, pp.103651~ (2023)
- J. M. Torralba, , Powder Metall, 62, pp.84~ (2019)
- K. B. Zhang, , J. Alloys Compd, 485, pp.L31~ (2009)
- S. -H. Joo, , J. Alloys Compd, 698, pp.591~ (2017)
- M. Laurent-Brocq, , J. Alloys. Compd, 780, pp.856~ (2019)
- R. Ravi, , J. Alloys Compd, 883, pp.160879~ (2021)
- K. E. Smetanina, , J. Alloys Compd, 973, pp.172823~ (2024)
- C. A. Schneider, , Nat. Methods, 9, pp.671~ (2012)
- X. Song, , J. Am. Ceram. Soc, 89, pp.494~ (2006)
- G. Laplanche, , J. Alloys Compd, 623, pp.348~ (2015)
- R. Li, , J. Alloys Compd, 746, pp.125~ (2018)
- Y. Li, , J. Alloys Compd, 509, pp.5242~ (2011)