Deep Drawability and Stretchability of Pure-iron Single Crystals

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  • 純鉄単結晶板の深絞り性と張出し性
  • ジュン テツ タンケッショウバン ノ フカシボリセイ ト ハリダシセイ

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Abstract

A stydy has been made of the orientation dependence of drawability and stretchability, using pureiron single crystals. Disk specimens (thickness: 0.5 mm, diameter: 20 mm) with various planar orientations have been prepared and subjected to deep drawing and stretching by means of mini press machine. The results show that the variation of deep drawability and stretchability can be explained in terms of plastic strain ratio (γ) and work-hardening exponent (n), respctively, and that both deep drawability and stretchability are excellent for planar orientations {111}, {122}, and {123} having high values of n as well as γ. It is also shown that the variation of deep drawability with planar orientations in the single crystals is directly related to the texture dependence of deep drawability in commercial steels. Contrary to this, the texture dependence of stretchability is not obvious because the exponent n depends markedly upon the grain size of steels.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 65 (3), 418-424, 1979

    The Iron and Steel Institute of Japan

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