ひずみ模様の検出とその特性について

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タイトル別名
  • On the Detect Range of Strain Figures and their Characteristics
  • ヒズミ モヨウ ノ ケンシュツ ト ソノ トクセイ ニ ツイテ

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抄録

We studied on the following items : 1. The detect range of strain figures. 2. The relations between Luders' line and strain figure. 3. The equivalency of strain figures between strain caused by mechanical stress and that caused by thermal stress. As results, the following conclusions were obtained. 1. The yielding of steel or Fe-C alloy is due to slip failure of one phase in two phases, such as ferrite and pearlite or pearlite and cementite. In adequate structure, we detected the strain figures of steel, which carbon contents from 0.05 % to 3 % and some special steels. The strain energy of yield disperses at the temperature of A1 point. 2. At low temperature, Luders' line relates equally to strain figure, but not at high temperature. 3. The strain energy of mechanical stress is equivalent to that of thermal stress. Note : -The details of their characteristics were explained with photographs.

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