Session A: Light MetalsNo Access

MICROSTRUCTURE AND TENSILE PROPERTIES OF SQUEEZE CAST Mg-Al-Ca ALLOYS

Department of Mechanical, Automotive & Materials Engineering, University of Windsor, 401 Sunset Ave., Windsor, Ontario, Canada N9B 3P4, Canada

Search for more papers by this author

QIANG ZHANG

Department of Mechanical, Automotive & Materials Engineering, University of Windsor, 401 Sunset Ave., Windsor, Ontario, Canada N9B 3P4, Canada

Search for more papers by this author

, and

HENRY HU

Department of Mechanical, Automotive & Materials Engineering, University of Windsor, 401 Sunset Ave., Windsor, Ontario, Canada N9B 3P4, Canada

Search for more papers by this author

https://doi.org/10.1142/S0217979209060002Cited by:2 (Source: Crossref)

Abstract

Microstructure and tensile properties of squeeze cast Mg-Al-Ca alloys with different levels of calcium addition (AMC50X) were studied. The microstructural analysis by optical and scanning electron microscopy (SEM) shows that the squzeeze cast Mg-Al-Ca alloys contain primary α-Mg, (Al, Mg)₂Ca and Mn-Al intermetallic while the base alloy AM50 contains primary α-Mg, β-Mg₁₂Al₁₇ and Mn-Al intermetallic. The addition of calcium varying from 1 to 4 wt.% increases the fraction area of Ca-containing secondary phases from 9.5% to 19.5%. The experimental observation confirms also that the calcium has a grain refining effect on the base alloy AM50A. The tensile testing results indicate that, as the calcium content of AMC50X alloys increases from 0 to 4%, the ultimate tensile strength (UTS) and elongation (E_f) decrease dramatically at room temperature as their yield strengths (YS) improves slightly. At 150°C, however, both the UTS and YS of the alloys increase with increasing the Ca content.

Keywords:

You currently do not have access to the full text article.
Recommend the journal to your library today!

References

H. Huet al., Materials and Manufacturing Processes 18, 687 (2003). Crossref, Web of Science, Google Scholar
K. Y. Sohn, W. Jones, J. J. Berkmortel, H. Hu and J. E. Allison, SAE 2000 World Congress Technical Paper Series, 01-1120 (2000) . Google Scholar
M. O. Pekgulryuz and J. Renaud, Magnesium Technology, eds. H. I. Kaplanet al. (TMS, 2000) pp. 279–284. Google Scholar
T. Yoshihiroet al., Materials Science Forum 419-422, 459 (2003). Google Scholar
Y. Teradaet al., Metallurgical and Materials Transactions A 35A, 3029 (2004). Web of Science, ADS, Google Scholar
B. R. Powellet al., SAE Transactions: Journal of Materials & Manufacturing 110, 406 (2001). Web of Science, Google Scholar
L. Hanet al., Materials Science and Engineering A 473, 16 (2008). Crossref, Web of Science, Google Scholar
J. J. Berkmortel, H. Hu, J. E. Kearns and J. E. Allison, SAE 2000 World Congress Technical Paper Series, 01-1119 (2000) . Google Scholar
B. R. Powellet al., Magnesium Technology, ed. H. I. Kaplan (TMS, 2002) pp. 123–129. Google Scholar
M. Masoumi, H. Hu and N. Li, Magnesium Technology, eds. R. S. Bealset al. (TMS, 2007) pp. 123–129. Google Scholar
M. Masoumi, Master thesis, Univ. of Windsor, Windsor, Ontario, Canada, 2006 . Google Scholar
M. Zhouet al., Journal of Materials Engineering and Performance 14(4), 539 (2005). Crossref, Web of Science, ADS, Google Scholar
G. E. Dieter , Mechanical Metallurgy ( McGraw-Hill , New York , 1976 ) . Google Scholar
J. D. Whittenberger and M. V. Nathal, Mechanical Testing ASM Metals Handbook, 9th edn. 8, eds. J. R. Newbyet al. (American Society for Metals, 1985) p. 34. Google Scholar