Effects of alloying elements and cooling rate on morphology of phases in CaO added Mg-Al-Si alloys

Young Gil Jung, Hyun Kyu Lim, Young Ok Yoon, Shae K. Kim, Do Hyang Kim

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

2 Citations (Scopus)

Abstract

Mg2Si formed by the addition of Si in Mg-Al alloys is the very useful intermetallic compound. However, Mg2Si phases in the Mg-Al-Si alloys are prone to forming undesirable, coarse Chinese script shape, which will deteriorate the mechanical properties of Mg alloys. Therefore, in order to modify the Chinese script shaped Mg2Si phases in the Mg-Al-Si alloys, many methods have been studied such as alloying addition of Ca or P. This study was aimed at improving the mechanical properties of CaO added Mg-Al-Si alloys by the addition of alloying elements and varying cooling rate to change of morphology of Mg2Si and CaMgSi phases. The microstructures of specimens were observed by OM and SEM, and the phase analysis was performed by XRD, TEM and EDS. To evaluate the mechanical properties of tested alloys, tensile tests were carried out at room and high temperatures.

Original languageEnglish
Title of host publicationMagnesium Technology 2013 - Held During the TMS 2013 Annual Meeting and Exhibition
Pages335-339
Number of pages5
Publication statusPublished - 2013 Apr 16
EventMagnesium Technology 2013 - TMS 2013 Annual Meeting and Exhibition - San Antonio, TX, United States
Duration: 2013 Mar 32013 Mar 7

Publication series

NameMagnesium Technology
ISSN (Print)1545-4150

Other

OtherMagnesium Technology 2013 - TMS 2013 Annual Meeting and Exhibition
CountryUnited States
CitySan Antonio, TX
Period13/3/313/3/7

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Jung, Y. G., Lim, H. K., Yoon, Y. O., Kim, S. K., & Kim, D. H. (2013). Effects of alloying elements and cooling rate on morphology of phases in CaO added Mg-Al-Si alloys. In Magnesium Technology 2013 - Held During the TMS 2013 Annual Meeting and Exhibition (pp. 335-339). (Magnesium Technology).