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http://dx.doi.org/10.7777/jkfs.2012.32.6.269

Microstructure and Mechanical Behavior of Al-Mg-Si/Al Hybrid Alloy by Duo-casting  

Han, Ji-Min (Department of Materials Engineering, Korea Aerospace University)
Kim, Chong-Ho (New Materials Research Department, RIST)
Park, Jun-Pyo (New Materials Research Department, RIST)
Chang, Si Young (Department of Materials Engineering, Korea Aerospace University)
Publication Information
Journal of Korea Foundry Society / v.32, no.6, 2012 , pp. 269-275 More about this Journal
Abstract
Al-Mg-Si/Al hybrid alloy was prepared by Duo-casting and the mechanical behavior was evaluated based on their microstructure and mechanical properties. The hybrid aluminum alloy included the Al-Mg-Si alloy with fine eutectic structure, pure Al with the columnar and equiaxed crystals, and the macro-interface existing between Al-Mg-Si alloy and pure Al. The growth of columnar grains in pure Al occurred from the macro-interface. The tensile strength, 0.2% proof stress and bending strength of the hybrid aluminum alloy were almost similar to those of pure Al, and the elongation was much higher than the Al-Mg-Si alloy. The fracture of the hybrid alloy took place in pure Al side, indicating that the macro-interface was well bonded and the mechanical behavior strongly depends on the limited deformation in pure Al side.
Keywords
Duo-casting; Al-Mg-Si/Al Hybrid Alloy; Macro-interface; Tensile Properties; Bending strength;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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