Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Oxidation Resistance of Aluminum Cast Iron by Aluminum Content

알루미늄 함량에 따른 알루미늄 주철의 내산화성에 관한 연구

  • 김동혁 (한국생산기술연구원 대경지역본부)
  • Received : 2020.09.22
  • Accepted : 2020.11.30
  • Published : 2020.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Aluminum cast iron has excellent oxidation resistance, sulfurization resistance, and corrosion resistance. However, the ductility at room temperature is insufficient, and at temperatures above 600?, the strength drops sharply and practicality is limited. In the case of heat-resistant cast iron, high-temperature materials containing Cr and Ni account for 30 to 50% or more. However, these high-temperature materials are expensive. Aluminum heat-resistant cast iron is considered as a substitute for expensive heat-resistant materials. Oxidation due to the aging temperature and holding time conditions increases more in 0 wt.% Al-cast iron than in 2 and 4 wt.% Al-cast iron according to oxidized weight and gravimetric oxide layer thickness measurements. As a result of observing the cross-section of the oxide layer, it was found to contain 0 wt.% of Al-cast iron silicon oxide-containing SiO2 or Fe2SiO4 oxide film. In cast iron containing aluminum, the thickness of the internal oxide layer due to aluminum increases as the aging temperature and retention time increase, and the amount of the iron oxide layer generated on the surface decreases.

Keywords

References

  1. J.L. Jorstad, Die Casting Engineer, "Future technology in Aluminum die casting", 9 (2006) 18-25.
  2. G. Trenda, Casting Plant and Technology International, "Die casting alloy for ductile, thin-walled structural parts," 22 (2006) 28.
  3. U. Prakash, R.A. Buckley, H. Jones and CM Sellars, ISIJ International, "Structure and properties of ordered intermetallics based on the Fe-AI system", 31 (1991) 1113-1126. https://doi.org/10.2355/isijinternational.31.1113
  4. P.F. Tortorelli, J.H. DeVan and J.R. Distefano, Proceedings of the Second International ASM Conference on High Temperature Aluminides and Intermetallics, Aluminides and Intermetallics, "Behavior of iron aluminides in oxidizing and oxidizing/sulfldizing environments", (1992) 573-577.
  5. J.R. Davis, ASM specialty handbook: heat-resistant materials, ASM International, Materials Park, OH (1997) 182.
  6. Kim KY, Kim YG, Shin HC, Lee KH, Lim SG, Choi JC and Hur BY, the production technology of cast iron II", KFS, Seoul (2010) 97-98.
  7. N. Scheidhauer, C. Dommaschk and G. Wolf, Materials Science Forum, "Oxidation resistant cast Iron for high temperature application", 925 (2018) 393-399. https://doi.org/10.4028/www.scientific.net/MSF.925.393
  8. S. Takamori, T. Kimura and Y. Osawa, Journal of Japan Foundry, "Structure and wear properties of aluminium alloyed gray cast iron", 74 (2002) 3.
  9. J.F. Mountford, Oxford University Press, "The influence of Ni on the Strength Bundness and Structure of Gray Cast Iron", 14 (1966).
  10. S. Kaldybayeva, Journal of Minerals & Materials Characterization & Engineering, "Research of crystallization of aluminums cast iron", 10 (2011) 1197-1203. https://doi.org/10.4236/jmmce.2011.1013092
  11. G.A. Celik, M.I.T. Tzini, Seyda Polat, S.H. Atapek and G.N. Haidemenopoulos, International Journal of Minerals, Metallurgy and Materials, "Thermal and microstructural characterization of a novel ductile cast iron modified by aluminum addition", 27 (2020) 190. https://doi.org/10.1007/s12613-019-1876-8
  12. M.J Kadhim, Modern Applied Science, "Microstructure and high temperature oxidation behavior of aluminum alloyed cast irons", 4 (2010) 12. https://doi.org/10.5539/mas.v4n12p130
  13. Yasuhiko Komatsu, Shigetoshi Sugimoto, Hosayoshi Kitagawa and Hiromu Tanimura, Journal of JFS, "The effect of silicon content on mechanical and anti-oxidation properties of spheroidal graphite cast iron", 51 (1979) 345-350.