Evaluation of Plastic Deformation Limit by Circumferentially Notched Tension Test
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概要
- 論文の詳細を見る
Circumferentially notched and smooth round tension tests were carried out at room temperature with and without compressive prestrain in a hot-rolled ferrite-pearlite SM490B steel, and the effects of the compressive prestrain and the notch on the plastic deformation limit (PDL) were investigated. The PDL was defined as a termination point in a true stress-true strain curve which was caused by a ductile or cleavage fracture. The notch caused variations in the average stress-true strain curve but did not affect the true stress-true strain curve. A true strain at the plastic instability was determined by a work hardening exponent, regardless of the notch. On the other hand, the true strain at the PDL differed according to the notch. An axial stress at the PDL was found to be about 1300 MPa, regardless of the ductile and cleavage fracture.
- 社団法人 日本鉄鋼協会の論文
- 2005-06-15
著者
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Nagai K
National Inst. For Materials Sci. Tsukuba Jpn
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Nagai K
Univ. Hyogo
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Nagai Kotobu
Exploratory Materials Research Laboratory For Reliability And Safety National Institute For Material
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Nagai K
Steel Research Center National Institute For Materials Science
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Nagai Kotobu
Steel Research Center National Institute For Materials Science
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Nagai Kotobu
Materials Res. For The Environment And Energy National Inst. For Materials Sci.
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Nagai K
Metallurgical Processing Group Steel Research Center National Institute For Materials Science
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ENAMI Keitaro
Steel Research Center, National Institute for Materials Science
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Enami Keitaro
Steel Research Center National Institute For Materials Science
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Nagai K
Exploratory Materials Research Laboratory For Reliability And Safety National Institute For Material
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