Grain Structure Analysis in Rolled 1050 Al Alloy Sheets Using EBSD

EBSD에 의한 A1050 압연판재의 결정립 구조 분석

  • Han, Jun-Hyun (Alloy Design Research Center, Korea Institute of Science and Technology) ;
  • Shin, Myung-Chul (Alloy Design Research Center, Korea Institute of Science and Technology)
  • 한준현 (한국과학기술연구원, 합금설계연구센터) ;
  • 신명철 (한국과학기술연구원, 합금설계연구센터)
  • Received : 2001.01.12
  • Published : 2001.02.25

Abstract

The effect of cryogenic heavy rolling method on grain refinement has been studied and compared with those obtained by previous methods of cryogenic rolling and heavy rolling developed separately. Both grain structure and grain size were analyzed using electron back scattered diffraction (EBSD), which can distinguish grains each other by means of crystallographic misorientations between them. The cryogenic rolling and heavy rolling exhibit reduction in grain size of 39% and 87%, respectively, and the cryogenic heavy rolling shows reduced grain size similar to that observed in the heavy rolling. The heavy rolling was proved more effective in grain size refinement than the cryogenic rolling.

Keywords

Cryogenic rolling;Heavy rolling;Grain refinement;EBSD;Thermo mechanical treatment

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