106 Strain Rate Dependence on Electric Resistivity of Austenitic Stainless Steel
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概要
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In order to estimate the strain rate dependence of the strain-induced martensite, the electric resistivity of austenitic stainless steel was measured using the constant current circuit before and after the tension test. The experiment was carried out at the room and nitrogen temperatures. Though the resistivity ratios at the high strain rate and low temperature were similar to the results at low strain rate and low strain rate and low temperature up to the strain of about 0.25,the resistivity at the strain above 0.25 was almost constant with the strain because of the internal heat generation by the conversion of the plastic work. Since the resistivity at room temperature test hardly depend on the strain and strain rate, the resisitivity ratios of the stainless steel were scarcely influenced by the deformation. Accordingly, it is clarified that the resistivity ratios were available as the parameters to parameters to estimate the quantity of the strain-induced martensite. Finally, the quantity was compared with the theoretical analysis presented by Olson etc.
- 一般社団法人日本機械学会の論文
著者
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FUTAKAWA Masatoshi
Japan Atomic Energy Agency
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ISHIKURA Shuichi
Japan Atomic Energy Agency
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Date Hidefumi
Department Of Mechanical Engineering Tohoku Gakuin University
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Ishikura Shuichi
Japan Atomic Energy Research Institute
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