JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Effect of Ti, B, Zr Elements on Grain Refinement and Castability of Al-4wt%Mg-0.9wt%Si-0.3wt%Mn-0.15wt%Fe Casting Alloy
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
  • Journal title : Journal of Korea Foundry Society
  • Volume 35, Issue 5,  2015, pp.120-127
  • Publisher : The Korean Foundrymens Society
  • DOI : 10.7777/jkfs.2015.35.5.120
 Title & Authors
Effect of Ti, B, Zr Elements on Grain Refinement and Castability of Al-4wt%Mg-0.9wt%Si-0.3wt%Mn-0.15wt%Fe Casting Alloy
Kim, Heon-Joo; Park, Su-Min;
  PDF(new window)
 Abstract
The effects of Ti, B and Zr on grain refinement and castability were investigated in Al-4wt%Mg-0.9wt%Si-0.3wt%Mn-0.15wt%Fe alloy. Measurement of cooling curve and micro-structure observation were performed to analyze the effects of the addition of minor elements Ti, B and Zr during solidification. The prominence of effect on grain refinement was in increasing order for Ti, Zr and B element. Fine grain size and an increase of the crystallization temperature for -Al solution were evident as the amount of addition elements increased in this study. Addition of 0.15wt% Ti was most effective for grain refinement, and the resulting grain size of -Al solution for shell mold and steel mold were and , respectively. Fluidity and shrinkage tests were perform to evaluate the castability of the alloy. Maximum fluidity length and minimum ratio of micro shrinkage were recorded for 0.15wt% Ti addition due to the effect of the finest grain size.
 Keywords
Grain refinement;Fluidity test;Shrinkage test;Al-4wt%Mg-0.9wt%Si-0.3wt%Mn-0.15wt%Fe alloy;
 Language
Korean
 Cited by
 References
1.
J. L. Jorstad, Die Casting Engineer, "Future technology in Aluminum die casting", 9 (2006) 18-25.

2.
H. Koch, U. Hielsher, H. Sternau and A. J. Franke, Light Metals 1995 :TMS, Las Vegas, USA, "Silafont-36, the new low iron high-pressure die-casting alloy", Feb. (1995) 1011- 1018.

3.
M. Makhlouf and D. Apelian, ACRC, "Casting characteristics of Aluminum die casting alloys", Paper No. DEFC07-99ID (2002) 13716.

4.
Kim JM, Seong KD and Jun JH, J. Korea Foundry Society, "Variation of fluidity and mechanical properties of Al-Mg alloys with the addition of Si, Mn and Zn", 24 (2004) 138-144.

5.
D.G. McCartney, Int. Mater. Rev., "Grain refining of aluminum and its alloys using inoculants", 34 (1989) 247-260. crossref(new window)

6.
B.S. Murty, S. A. Kori and M. Chakraborty, Int. Mater. Rev., "Grain refinement of aluminum and its alloys by heterogeneous nucleation and alloying", 47 (2002) 3-29. crossref(new window)

7.
A. Lindsay Geer et al., Adv. Eng. Mater., "Grain refinement of aluminium alloys by inoculation", 5 (2003) 81-91. crossref(new window)

8.
A. Kozlov and R. Schmid-Fetzer, Materials Sci. and Eng., "Growth restriction factor in Al-Si-Mg-Cu alloys", 27 (2011) 012001-6.

9.
T. Chandrashekar, M.K. Muralidhara, K.T. Kashyap and P. Raghothama Rao, Int. J. Manuf. Technol., "Effect of growth restricting factor on grain refinement of aluminum alloys", 40 (2009) 234-241. crossref(new window)

10.
L. Zhang, D.G. Eskin, A. Miroux and L. Katgeman, 13th Int. Conf. on Aluminum Alloy(ICAA13), Pennsylvania, USA, "Role of solute and transition metals in grain refinement of aluminum alloys under ultrasonic melt treatment", June 3-7 (2012) 1389-1394.

11.
J. L. Jorstad, Wayne and D.L Zalensas, Aluminum Casting Technology 2nd ed., American Foundrymen's Society Inc., Illinois (1997) 21-26.

12.
M. Easton and D. St.John, Met. and Mat. Trans. A, "Grain refinement of aluminum alloys", 30A (1999) 1613-1633.

13.
Kim HJ, J. Korea Foundry Society, "Effects of Fe, Mn content on the castability of Al-4%Mg-0.9%Si alloys for high pressure die casting", 33 (2013) 55-62. crossref(new window)

14.
Z.Chen, Z.He and W. Jie, J. Mater. Sci. Technol., "A model for evaluation of grain sizes of aluminum alloys with grain refinement additions", 23 (2007) 619-622.

15.
S. Nafisi and R. Ghomashchi, Materials Sci. and Eng. A, "Boron-based refiners: Implications in conventional casting of Al-Si alloys", 452-453 (2007) 445-453. crossref(new window)

16.
G.K. Sigworth and T.A. Kuhn, AFS Transactions "Grain Refinement of Aluminum Casting Alloys", paper 07-067 (2007), p1-12

17.
Kwon YD, Lee ZH and Kim KH, J. Korea Foundry Society, "The effect of grain refinement in fluidity of Al-4.8%Cu- 0.6%Mn alloy", 22 (2002) 109-113.

18.
M. Johnsson and L. Backerud: Z. Metallkd., 87 (1996), 216- 220.

19.
J. Campbell, Castings 1st ed., Butterworth-Heinemann Ltd., Oxford (1991) 194.

20.
M. Petric, J. Medved and P. Mrvar, Metalurgua "Effect of grain refinement and modification of eutectic phase on shrinkage of AlSi9Cu3 alloy", 50 (2011), 127-131.

21.
R. Cook, London & Scandinavian metallurgical Co. Limited, London, "Grain refinement of aluminium- silicon foundry alloys", (1998), 9-12.