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

듀오캐스트 Al-Mg-Si/Al 하이브리드 합금의 미세조직과 기계적 변형 특성

  • 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)
  • 한지민 (한국항공대학교 항공재료공학과) ;
  • 김종호 (포항산업과학연구원) ;
  • 박준표 (포항산업과학연구원) ;
  • 장시영 (한국항공대학교 항공재료공학과)
  • Received : 2012.09.17
  • Accepted : 2012.11.14
  • Published : 2012.12.31

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.

Acknowledgement

Supported by : 지식경제부

References

  1. Lee SH and Lee GJ, Kor. J. Mater. Res., "Annealing characteristics of ultrafine grained AA1050/AA5052 complex aluminum alloy sheet fabricated by accumulative roll-bonding", 21 (2011) 655-659. https://doi.org/10.3740/MRSK.2011.21.12.655
  2. O. Yilmaz and H. Cerik, J. Mater. Process Technol., "Electrical and thermal properties of the interface at diffusion-bonded and soldered 304 stainless steel and copper bimetal", 141 (2003) 67-76. https://doi.org/10.1016/S0924-0136(03)00029-3
  3. Kacar R, and Acarer M, J. Mater. Process Technol., "An investigation on the explosive classing of 316L stainless steeldin- P355GH steel", 152 (2004) 91-96. https://doi.org/10.1016/j.jmatprotec.2004.03.012
  4. Kazanowski P, Epler ME and Misiolek WZ, Mater. Sci. Eng., A, "Bi-metal rod extrusion-process and product optimization", 369 (2004) 170-180. https://doi.org/10.1016/j.msea.2003.11.002
  5. Chesney P, Proc. of SDMA 2003 and ICSF V, "A new spray coating process for manufacture of stainless steel clad construction steel with resistance to corrosion by de-icing salts & seawater", (2003) ch.5, 3-9.
  6. Jianbo S, Jun L, Zhiming Y, Zhiquiang C and Tingju L, Proc. of the 6th international conference on electromagnetic processing of materials, "study on preparation of clad aluminum alloy slab by electromagnetic continuous casting", (2009) 595-598.
  7. Chang SY, Cho SJ, Hong SK and Shin DH, J. Alloys Compd., "Microstructure and tensilr properties of Bu-materials with macro-interface between unreinforced magnesium and composite ", 316 (2001) 275-279. https://doi.org/10.1016/S0925-8388(00)01457-2
  8. Chang SY, Kim YK, Hong SK and Shin DH, Mater. Trans., "Effect of heat treatment on tensile properties of component with macro-interface between unreinforced magnesium and composite", 42 (2001) 1035-1041. https://doi.org/10.2320/matertrans.42.1035
  9. Chang SY, Cho HG and Kim YD, J. Kor. Powder Metall. Inst., "Bi-materials of Al-Mg alloy reinforced with/without SiC and $Al_{2}O_{3}$ particles; processing and mechanical properties", 14 (2007) 354-361. https://doi.org/10.4150/KPMI.2007.14.6.354
  10. Park SJ, Li T, Kim CH, Park JP and Chang SY, Kor. J. Mater. Res., "Microstructure and tensile properties of Al-Mn/Al-Si hybrid aluminum alloy prepared by electromagnetic duocasting", 22 (2012) 97-102. https://doi.org/10.3740/MRSK.2012.22.2.97

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