Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Texture and Plastic Strain Ratio Changes with the Number of Passes of Asymmetric Rolling in AA1050 Al Alloy Sheet

비대칭 압연 패스 회수에 따른 AA1050 Al 판재의 집합조직과 소성변형비 변화

  • 남수권 (금오공과대학교 신소재시스템공학부) ;
  • 정해봉 (금오공과대학교 신소재시스템공학부) ;
  • 김인수 (금오공과대학교 신소재시스템공학부)
  • Received : 2010.10.12
  • Accepted : 2010.10.26
  • Published : 2010.12.01
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Abstract

The physical and mechanical properties and formability of sheet metals depend on preferred crystallographic orientations (texture). In this research work, the texture development and formability (plastic strain ratios) of AA1050 Al alloy sheets after 3 and 10 passes of asymmetric rolling and subsequent heat treatment were investigated. The plastic strain ratios of 10 passes asymmetrically rolled and subsequent heat treated samples are 1.3 times higher than those of the initial AA1050 Al alloy sheets. The ${\Delta}r$ of 10 passes of asymmetrically rolled and subsequent heat treated samples is 1/30 times lower than those of the initial AA1050 Al alloy sheets. The plastic strain ratios of 10 passes of asymmetrically rolled and subsequent heat treated Al sheets are higher than those of 3 passes ones. These results could be attributed to the formation of $\gamma$-fiber, ND//<111>, and the other texture components by means of asymmetric rolling in Al sheets.

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References

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