Effects of samarium on microstructure and mechanical properties of Mg-Al-Ca alloys

H. T. Son, J. S. Lee, Y. K. Kim, I. H. Oh, K. Yoshimi, K. Maruyama

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

4 Citations (Scopus)

Abstract

As samarium addition was increased, α- Mg matrix morphology was changed from dendritic to equiaxed grains and average value of grain size was decreased from 101.6μm to 39.3μm. Samarium addition to Mg-5Al-3Ca based alloys resulted in the formation of Mg-Al-Sm thernary intermetallic compounds at grain boundarys and α-Mg matrix grains. In these alloys, two kinds of eutectic structure were observed; coarse irregular-shape structure at grain boundary and fine needle-shape structure in the α-Mg matrix grain. It is found that the yield strength and ultimate strength showed the maximum value of 109.1MPa and 139.3 at Mg-5Al-3Ca-2Sm alloy, respectively.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design
PublisherTrans Tech Publications Ltd
Pages295-298
Number of pages4
ISBN (Print)0878494316, 9780878494316
DOIs
Publication statusPublished - 2007
Event8th International Symposium on Eco-Materials Processing and Design, ISEPD-8 - Kitakyushu, Japan
Duration: 2007 Jan 112007 Jan 13

Publication series

NameMaterials Science Forum
Volume544-545
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other8th International Symposium on Eco-Materials Processing and Design, ISEPD-8
CountryJapan
CityKitakyushu
Period07/1/1107/1/13

Keywords

  • Mg-Al-Ca alloy
  • Rear-earth elements
  • Samarium

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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