デジタルホログラフィック顕微鏡を用いたベイナイト変態のその場計測

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タイトル別名
  • <i>In-situ</i> Measurement of Bainitic Transformation Process using Digital Holographic Microscope
  • デジタルホログラフィック ケンビキョウ オ モチイタ ベイナイト ヘンタイ ノ ソノ バ ケイソク

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抄録

<p>A novel 3D in-situ measurement method was developed to clarify the bainitic transformation process of medium carbon steel. To achieve enhanced accuracy in 3D in-situ measurement by a digital holographic microscopy, the Gabor Wavelet transformation is introduced instead of the conventional reconstruction method based on the fast Fourier transformation. The effectiveness of the proposed method is first verified by comparison with the conventional reconstruction method as well as the other 3D measurement methods, such as atomic force microscopy and confocal laser microscopy. 3D in-situ observations were conducted to reveal the surface relief effect induced by the bainitic transformation behavior during continuous cooling. The results demonstrated that the measured shape deformation induced by the bainitic transformation corresponds well with the prediction by the phenomenological theory of martensite crystallography.</p>

収録刊行物

  • 鉄と鋼

    鉄と鋼 108 (6), 360-369, 2022

    一般社団法人 日本鉄鋼協会

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