Development of Heat Resistant Mg-Al-Ca Based Alloys for Casting and Semi-Solid Forming |
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| Journal | Solid State Phenomena (Volumes 116 - 117) |
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| Volume | Semi-Solid Processing of Alloys and Composites |
| Edited by | C.G. Kang, S.K. Kim and S.Y. Lee |
| Pages | 68-71 |
| DOI | 10.4028/www.scientific.net/SSP.116-117.68 |
| Citation | Jeong Min Kim et al., 2006, Solid State Phenomena, 116-117, 68 |
| Online since | October, 2006 |
| Authors | Jeong Min Kim, Gun Ha Lee, Joong Hwan Jun, Ki Tae Kim, Woon Jae Jung |
| Keywords | Al, CA, Cast, Magnesium Alloy, Mechanical Properties, Microstructure, Semi-Solid |
| Abstract | Mg-8%Al-1%Ca was selected as a base alloy composition and small amounts of minor alloying elements, RE or Sr, were added. Microstructure of as-cast Mg-8%Al-1%Ca base alloys consists of dendritic primary Mg, Mg-Al-Ca and Mg17Al12 phases. Mg-Al-RE-(Ca) phase in the RE-added alloys and Mg-Al-Sr-(Ca) phase in the Sr-added alloys were additionally found. The creep resistance of Mg-8%Al based alloy was significantly improved by the minor alloying elements additions with 1%Ca. Comparatively globular primary phase could be obtained after just 30min. through an isothermal heating of as-cast Mg-Al-Ca alloys. |
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