Microstructural evolution and creep resistance in Mg-Sn-Ca alloy

Do Hyung Kim, Hyun Kyu Lim, Ju Youn Lee, Won Tae Kim, Do Hyang Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Microstructural evolution of Mg-Sn-Ca system depending on the Ca/Sn ratio and their high temperature properties have been investigated in the present study. As-cast microstructures of the Mg-Sn-Ca alloys exhibit typical dendritic structure consisted of primary α-Mg and secondary solidification phases. The secondary solidification phases have been identified as Mg2Sn, CaMgSn or Mg2Ca depending on the Ca/Sn ratio. With small amount of Ca addition (∼1wt%), eutectic Mg2Sn phase disappears and CaMgSn phase is newly formed. Eutectic Mg2Sn phase at grain boundary deteriorates the creep resistance. On the other hand, Mg2Ca phase remarkably improves the creep properties. This result is attributed to the inherent thermally stability and precipitation of the Mg2Ca phase in matrix.

Original languageEnglish
Title of host publicationMagnesium Technology 2008
Pages417-420
Number of pages4
Publication statusPublished - 2008 Jun 30
EventMagnesium Technology 2008 - New Orleans, LA, United States
Duration: 2008 Mar 92008 Mar 13

Publication series

NameMagnesium Technology
ISSN (Print)1545-4150

Other

OtherMagnesium Technology 2008
CountryUnited States
CityNew Orleans, LA
Period08/3/908/3/13

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Kim, D. H., Lim, H. K., Lee, J. Y., Kim, W. T., & Kim, D. H. (2008). Microstructural evolution and creep resistance in Mg-Sn-Ca alloy. In Magnesium Technology 2008 (pp. 417-420). (Magnesium Technology).