衝撃破面のフラクトグラフィ的特徴と内部組織との対応関係に関する研究 : SS41材の場合

概要

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The fractographic features of the fracture surfaces caused by impact loads and the correlation between the features and the underlying microstructures are studied. The specimens of structual steel SS41 are broken off by a gun-type impact testing machine or Charpy impact testing machine at various impact velocities. The fracture surfaces are observed and photographed using a scanning electron microscopy (SEM) and then plated electrolytically with nickel. The specimens are cut on a plain perpendicular to the fracture surface. The cross sections are polished and etched. The optical photomicrograph of the section reveals the profile of the surface and the underlying microstructure without any edge rounding. Matching the SEM photographs to the optical micrographs, the correlation between the fractographic features and the microstructures is discussed.
社団法人日本機械学会の論文
1984-06-25