A Description of the Yield-Point Phenomenon of Carbon Steel Based on the Random Barriers Theory

• OBATAYA Yoichi

• KOHNO Shinobu

抄録

An approach to the description of the yield-point phenomenon of carbon steel was presented by the considering the behavior of the moving dislocations in the resisting force field of the random barriers theory. By reflecting the catastrophic increase of movable dislocations freed from any locking atmospheres in the internal structure variable in the theory, the equations expressing the stress decrement at the upper yield point and the yield-point elongation were derived. Through the examination of the test results for several annealed steels, it was clarified that the upper and lower yield points as well as the yield-point elongation of these metals could be described systematically with the area fraction of pearlite in a ferrite matrix.

収録刊行物

• JSME international journal. Ser. 1, Solid mechanics, strength of materials

  JSME international journal. Ser. 1, Solid mechanics, strength of materials 33 (3), 303-309, 1990

  一般社団法人 日本機械学会

キーワード

• Plasticity
• Yield Point
• Dislocation
• Random Barriers Theory
• Resisting Force Field
• Carbon Steel
• Pearlite

詳細情報

• CRID: 1390001205431847296
• NII論文ID: 110002347631
• NII書誌ID: AA10680585
• DOI: 10.1299/jsmea1988.33.3_303
• ISSN: 09148809
• Web Site: https://www.jstage.jst.go.jp/article/jsmea1988/33/3/33_3_303/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可