Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
권호 표지
DOI QR코드

DOI QR Code

The Effect of Ce Addition on Corrosion Behavior of Permanent Mold Casting Mg-4Al-2Sn-1Ca alloy

금형 주조한 Mg-4Al-2Sn-1Ca 합금의 부식 거동에 미치는 Ce 첨가의 영향

  • Park, Kyung Chul (Defence Agency for Technology and Quality) ;
  • Kim, Byeong Ho (Defence Agency for Technology and Quality) ;
  • Jung, Jae Woong (Defence Agency for Technology and Quality) ;
  • Cho, Dae Hyun (Department of Material Science and Engineering, Pusan National University) ;
  • Park, Ik Min (Department of Material Science and Engineering, Pusan National University)
  • Received : 2014.09.11
  • Accepted : 2014.11.11
  • Published : 2014.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In the present work, the effect of adding Ce on the corrosion behavior of Mg-4Al-2Sn-1Ca alloy was investigated. The studied alloys were fabricated by gravity casting method and a potentiodynamic polarization, A.C. impedance and hydrogen evolution tests were carried out in a 3.5% NaCl solution with pH 7.2 at room temperature to measure the corrosion properties of Mg-4Al-2Sn-1Ca-xCe alloys. The microstructure of the Mg-4Al-2Sn-1Ca alloy was composed of ${\alpha}$-Mg, Mg17Al12, Mg2Sn and CaMgSn phase. Also, a $Al_{11}Ce_3$ phase was newly formed by the addition of Ce. With an increase of the Ce contents, the microstructure became refined and the corrosion resistance improved.

Keywords

References

  1. Kim BH, Park KC, Park YH and Park IM, Mater. Lett., "Effect of Pd on microstructures and tensile properties of ascast Mg-6Al-1Zn alloys", 65 (2011) 122-125. https://doi.org/10.1016/j.matlet.2010.09.035
  2. Park KC, Park BH, H. Kimura, Park YH and Park IM, Mater. Trans., "Microstructure and corrosion properties of Mg-xSn-5Al-1Zn (x = 0, 1, 5 and 9 mass%) alloys", 51 (2010) 472-476. https://doi.org/10.2320/matertrans.M2009308
  3. Jo SM, Park KC, Park BH, H. Kimura, Park SK and Park YH, Mater. Trans., "Investigation on the microstructure and mechanical properties of Mg-Al-Yb alloys", 52 (2011) 1088-1095. https://doi.org/10.2320/matertrans.MC201011
  4. M.M. Avedesian, N.M. Inc. and H. Baker, Magnesium and magnesium alloys, ASM International, USA, (1999) 3-6.
  5. Kim BH, Park KC, Park YH and Park IM, Mater. Sci. Eng. A, "Investigations of the properties of Mg-4Al-2Sn-1Ca-xCe alloys", 527 (2010) 6372-6377. https://doi.org/10.1016/j.msea.2010.06.055
  6. M. Yang and F. Pan, Mater. Design, "Effects of Sn addition on as-cast microstructure, mechanical properties and casting fluidity of ZA84 magnesium alloy", 31 (2010) 68-75. https://doi.org/10.1016/j.matdes.2009.07.018
  7. S. Wei, Y. Chen, Y. Tang, H. Liu, S. Xiao, G. Niu, X. Zhang and Y. Zhao, Mater. Sci. Eng. A, "Compressive creep behavior of as-cast and aging-treated Mg-5 wt% Sn alloys", 492 (2008) 20-23. https://doi.org/10.1016/j.msea.2008.05.006
  8. C.L. Mendis, C.J. Bettles, M.A. Gibson and C.R. Hutchinson, Mater. Sci. Eng. A, "An enhanced age hardening response in Mg-Sn based alloys containing Zn", 435-436 (2006) 163-171. https://doi.org/10.1016/j.msea.2006.07.090
  9. H.E. Friedrich and B.L. Mordike, Magnesium Technology, Springer, Germany, (2006) 20.
  10. W. Xiao, S. Jia, J. Wang, J. Yang, L. Wang, Acta. Mater., "The influence of mischmetal and tin on the microstructure and mechanical properties of Mg-6Zn-5Al-based alloys", 56 (2008) 934-941. https://doi.org/10.1016/j.actamat.2007.10.042
  11. Kang YH, Kim SH, Jo SM, Kim BH, Park IM and Park YH, J. Korea Foundry Society, "Microstructure and corrosion behavior of Mg-xSn (x = 1, 3, 5, 7, 9 wt.%) Alloys", 31 (2011) 362-365. https://doi.org/10.7777/jkfs.2011.31.6.362
  12. X. Zhang, Y.J. Li, K. Zhang, C.S. Wang, Trans. Nonferrous Met. Soc. China, "Corrosion and electrochemical behavior of MgY alloys in 3.5% NaCl solution", 23 (2013) 1226-1236. https://doi.org/10.1016/S1003-6326(13)62587-X
  13. TANG S.Q, ZHOU J.X, TIAN C.W and YANG Y.S, Trans. Nonferrous Met. Soc. China, "Morphology modification of Mg2Si by Sr addition in Mg-4%Si alloy", 21 (2011) 1932-1936. https://doi.org/10.1016/S1003-6326(11)60952-7
  14. Mingbo. Y and Fusheng. P, Mater. Sci. Eng. A, "Effects of Y addition on as-cast microstructure and mechanical properties of Mg-3Sn-2Ca (wt.%) magnesium alloy", 525 (2009) 112-120. https://doi.org/10.1016/j.msea.2009.06.040
  15. Kim JH, Cho DH, Park IM, J. Korea Foundry Society, "Effect of cerium on the microstructure and room temperature tensile properties of Mg-4Al-2Sn-1Si alloys", 32 (2012) 289-295. https://doi.org/10.7777/jkfs.2012.32.6.289

Cited by

  1. The Effect of Al and Sn Additions on Corrosion Behavior of Permanent Mold Casting Magnesium Alloy vol.35, pp.2, 2015, https://doi.org/10.7777/jkfs.2015.35.2.036
  2. Comparison of Electrochemical Corrosion Properties of Permanent Mold Casting GZ21 Alloy and AZ91 Alloy vol.36, pp.2, 2016, https://doi.org/10.7777/jkfs.2016.36.2.60
  3. Effect of Solution Treatment on Corrosion Behavior of AZ91-2%Ca Magnesium Casting Alloy vol.28, pp.4, 2015, https://doi.org/10.12656/jksht.2015.28.4.190