レーザスペックル干渉法を用いた溶融Ｚｎめっき処理鋼の縦弾性係数の計測

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タイトル別名
  • A Study on the Measurement of Young's Modulus of Hot-Dip Zn Coated Steel by Laser Speckle Interferometry.
  • レーザ スペックル カンショウホウ オ モチイタ ヨウユウ Znメッキ ショリ コウ ノ タテダンセイ ケイスウ ノ ケイソク

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抄録

Laser speckle interferometry method can measure strain and displacement of material without contact. But, this method has a week point about the accuracy when applied to the rough surfaced object. Then, in this paper, laser speckle interferometry method was applied to measure the elastic properties of Hot-Dip Zn coated steel that has rough surface. The results are as follows.<br>1) Apparent Young's modulus of Hot-Dip Zn coated steel decreases with the increase of galvanized layer.<br>2) The Young's modulus of the (δ1+η) mixture layer and columnar layer, estimated by the compound rule and the multiple regression analysis, became 45.0GPa and 62.3GPa, respectively.<br>3) According to the above conclusions, the laser speckle interferometry method can be applied to measure the elastic properties of rough surfaced composite specimens.

収録刊行物

  • 表面技術

    表面技術 52 (7), 513-516, 2001

    一般社団法人 表面技術協会

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