Effects of Temperature and Stress on Work-Hardening and Recovery Rates during Steady-State Deformation of Lead

• Goto Akira

  Graduate School, Tohoku University

• Oikawa Hiroshi

  Department of Materials Science, Faculty of Engineering, Tohoku University

• Karashima Seiichi

  Department of Materials Science, Faculty of Engineering, Tohoku University

抄録

Work-hardening rates, h, and recovery rates, r, were measured during the steady-state tensile deformation of pure lead at temperatures between 301 K (0.50T_m) and 385 K (0.64T_m) under nominal strain-rates ranging from 1.2×10⁻⁶ s⁻¹ to 2.4×10⁻⁴ s⁻¹. Values of h were determined from the results of strain-rate change tests using an extrapolation technique. The value of h depends on stress and also on temperature. Values of r were determined from the results of stress-relaxation tests. The activation energy for the recovery is only 60% of that for the steady-state deformation. These results suggest the necessity of thorough re-consideration of the mechanisms proposed for “so-called” recovery creep, which is typical creep behavior of pure metals at high temperatures.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 21 (1), 15-19, 1980

  社団法人 日本金属学会

キーワード

• General Engineering

詳細情報

• CRID: 1390282680094331904
• NII論文ID: 130003485789
• DOI: 10.2320/matertrans1960.21.15
• COI: 1:CAS:528:DyaL3cXitF2ntLY%3D
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/21/1/21_1_15/_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