Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
권호 표지
DOI QR코드

DOI QR Code

Corrosion behavior of Mg-(0~6)%Zn Casting Alloys in 1M NaCl Solution

1M NaCl 용액에서 Mg-(0~6)%Zn 주조 합금의 부식 거동

  • Hwang, In-Je (Advanced Process and Materials R&D Group, Korea Institute of Industrial Technology) ;
  • Kim, Young-Jig (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Jun, Joong-Hwan (Advanced Process and Materials R&D Group, Korea Institute of Industrial Technology)
  • 황인제 (한국생산기술연구원 융합공정신소재그룹) ;
  • 김영직 (성균관대학교 공과대학 신소재공학부) ;
  • 전중환 (한국생산기술연구원 융합공정신소재그룹)
  • Received : 2016.07.18
  • Accepted : 2016.08.25
  • Published : 2016.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

The effects of the Zn content on the microstructure and corrosion behavior in 1M NaCl solution were investigated in Mg-(0~6)%Zn casting alloys. The MgZn phase was scarcely observed in the Mg-1%Zn alloy, while the Mg-(2~6)%Zn alloy consisted of ${\alpha}$-(Mg) and MgZn phases. With an increase in the Zn content, the amount of the MgZn phase was gradually increased. Immersion and electrochemical corrosion tests indicated that the Mg-1%Zn alloy had the lowest corrosion rate among the alloys, and a further increase in the Zn content resulted in the deterioration of the corrosion resistance. Microstructural examinations of the corroded surfaces and EIS analyses of surface corrosion films revealed that the best corrosion resistance at 1%Zn was associated with the absence of MgZn phase particles in the microstructure and the contribution of Zn element to the formation of a protective film on the surface. A micro-galvanic effect by the MgZn particles led to the increased rate of corrosion at a higher Zn content.

Keywords

References

  1. Witte F, Hort N, Vogt C, Cohen S, Kainer KU, Willumeit R and Feyerabend F, Current Opinion in Solid State Mater. Sci., "Degradable biomaterials based on magnesium corrosion", 12 (2008) 63-72. https://doi.org/10.1016/j.cossms.2009.04.001
  2. Song G, Corros. Sci., "Control of biodegradation of biocompatable magnesium alloys", 49 (2007) 1696-1701. https://doi.org/10.1016/j.corsci.2007.01.001
  3. Staiger MP, Pietak AM, Huadmai J and Dias G, Biomater., "Magnesium and its alloys as orthopedic biomaterials: A review", 27 (2006) 1728-1734. https://doi.org/10.1016/j.biomaterials.2005.10.003
  4. Witte F, Kaese V, Haferkamp H, Switzer E, Meyer-Lindenberg A, Wirth CJ and Windhagen H, Biomater., "On vivo corrosion of four magnesium alloys and the associated bone response", 26 (2005) 3557-3563. https://doi.org/10.1016/j.biomaterials.2004.09.049
  5. Zhang S, Zhang X, Zhao C, Li J, Song Y, Xie C, Tao H, Zhang Y, He Y, Jiang Y and Bian Y, Acta Biomater., "Research on an Mg-Zn alloy as a degradable biomaterial", 6 (2010) 626-640. https://doi.org/10.1016/j.actbio.2009.06.028
  6. Koc E, Kannan MB, Unal M and Candan E, J. Alloys Compd., "Influence of zinc on the microstructure, mechanical properties and in vitro corrosion behavior of magnesium-zinc binary alloysv, 648 (2015) 291-296. https://doi.org/10.1016/j.jallcom.2015.06.227
  7. Zhang B, Hou Y, Wang X, Wang Y and Geng L, Mater. Sci. Eng. C, "Mechanical properties, degradation performance and cytotoxicity of Mg-Zn-Ca biomedical alloys with different compositions", 31 (2011) 1667-1673. https://doi.org/10.1016/j.msec.2011.07.015
  8. Sun Y, Zhang B, Wang Y, Geng L and Jiao X, Mater. Des., "Preparation and characterization of a new biomedical Mg-Zn-Ca alloy", 34 (2012) 58-64. https://doi.org/10.1016/j.matdes.2011.07.058
  9. Homayun B and Afshar A, J. Alloys Compd., "Microstructure, mechanical properties, corrosion behavior and cytotoxicity of Mg-Zn-Al-Ca alloys as biodegradable materials", 607 (2014) 1-10. https://doi.org/10.1016/j.jallcom.2014.04.059
  10. Cai S, Lei T, Li N and Feng F, Mater. Sci. Eng. C, "Effects of Zn on microstructure, mechanical properties and corrosion behavior of Mg-Zn alloys", 32 (2012) 2570-2577. https://doi.org/10.1016/j.msec.2012.07.042
  11. Avedesian MM, Magnesium and Magnesium Alloys, ASM international, Materials Park, OH, (1999).
  12. Tapiero H and Tew KD, Biomed. Pharmacother., "Trace elements in human physiology and pathology; zinc and metallothioneins", 57 (2003) 399-411. https://doi.org/10.1016/S0753-3322(03)00081-7
  13. Lotfabadi AF, Idris MH, Qurdjini A, Kadir MRA, Farahany S and Bakhsheshi-Rad HR, Bull. Mater. Sci., "Thermal characteristics and corrosion behaviour of Mg-xZn alloys for biomedical applicationsv", 36 (2013) 1103-1113. https://doi.org/10.1007/s12034-013-0566-9
  14. Kubasek J and Vojtech D, J. Mater. Sci. Mater. Med., "Structural characteristics and corrosion behavior of biodegradable Mg-Zn, Mg-Zn-Gd alloys", 24 (2013) 1615-1626. https://doi.org/10.1007/s10856-013-4916-3
  15. Song Y, Han EH, Shan D, Yim CD and You BS, Corros. Sci., "The effect of Zn concentration on the corrosion behavior of Mg-xZn alloys", 65 (2012) 322-330. https://doi.org/10.1016/j.corsci.2012.08.037
  16. Zhao MC, Schmutz P, Brunner S, Liu M, Song GL and Atrens A, Corros. Sci., "An exploratory study of the corrosion of Mg alloys during interrupted salt spray testing", 51 (2009) 1277-1292. https://doi.org/10.1016/j.corsci.2009.03.014
  17. Shi Z, Liu M and Atrens A, Corros. Sci., "Measurement of the corrosion rate of magnesium alloys using Tafel extrapolation", 52 (2010) 579-588. https://doi.org/10.1016/j.corsci.2009.10.016
  18. Gao X and Nie JF, Scripta Mater., "Structure and thermal stability of primary intermetallic particles in an Mg-Zn casting alloy", 57 (2007) 655-658. https://doi.org/10.1016/j.scriptamat.2007.06.005
  19. Song GL and Atrens A, Adv. Eng. Mater., "Understanding magnesium corrosion : A framework for improved alloy performance", 5 (2003) 837-858. https://doi.org/10.1002/adem.200310405
  20. Song Y, Han EH, Dong K, Shan D, Yim CD and You BS, Corros. Sci., "Study of the corrosion product films formed on the surface of Mg-xZn alloys in NaCl solution", 88 (2014) 215-225. https://doi.org/10.1016/j.corsci.2014.07.034
  21. Williams G and Grace R, Elecrochim. Acta, "Chloride-induced filiform corrosion of organic-coated magnesium", 56 (2011) 1894-1903. https://doi.org/10.1016/j.electacta.2010.09.005
  22. Marques MRC, Loebenberg R and Almukainzi M, Dissolution Tech., "Simulated biological fluids with possible application in dissolution testing", Aug (2011) 15-28.
  23. Ambat R, Aung NN and Zhou W, J. Appl. Electrochem., "Studies on the influence of chloride ion and PH on the corrosion and electrochemical behaviour of AZ91D magnesium alloy", 30 (2000) 865-874. https://doi.org/10.1023/A:1004011916609