Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Microstructure Evolution and Mechanical Properties of Wire-Brushed Surface and Roll-Bonded Interface of Aluminum Sheets

와이어 브러싱한 알루미늄 판재 표면 및 압연접합 계면의 미세조직 및 기계적 성질

  • Kim, Su-Hyeon (Korea Institute of Materials Science, Structural Materials Division) ;
  • Kim, Hyoung-Wook (Korea Institute of Materials Science, Structural Materials Division) ;
  • Kang, Joo-Hee (Korea Institute of Materials Science, Structural Materials Division) ;
  • Euh, Kwangjun (Korea Institute of Materials Science, Structural Materials Division)
  • 김수현 (한국기계연구원 부설 재료연구소 구조재료연구본부) ;
  • 김형욱 (한국기계연구원 부설 재료연구소 구조재료연구본부) ;
  • 강주희 (한국기계연구원 부설 재료연구소 구조재료연구본부) ;
  • 어광준 (한국기계연구원 부설 재료연구소 구조재료연구본부)
  • Received : 2011.03.15
  • Published : 2011.05.25
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Abstract

Wire brushing, which is a typical surface preparation method for roll bonding, has recently been highlighted as a potentially effective method for surface nanocrystallization. In the present study, the microstructure evolution and hardness of the wire-brushed surface and roll-bonded interface of a 1050 aluminum sheet were investigated. Wire brushing formed protruded layers with a nanocrystalline structure and extremely high surface hardness. After roll bonding, the protruded layers remained as hard layers at the interface. Due to their hardness and brittleness the interface hard layers, can affect the interface bonding properties and also play an important role determining the mechanical properties of multi-layered clad sheets.

Keywords

Acknowledgement

Supported by : 재료연구소

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