中国物理B ›› 2006, Vol. 15 ›› Issue (5): 1051-1054.doi: 10.1088/1009-1963/15/5/030

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Effect of solute concentration on the serrated flow in solution-treated Al--4%Cu alloys

江慧丰, 张青川, 孙亮, 伍小平   

  1. Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230027, China
  • 收稿日期:2005-10-26 修回日期:2006-02-10 出版日期:2006-05-20 发布日期:2006-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10232030 and 10372098).

Effect of solute concentration on the serrated flow in solution-treated Al--4%Cu alloys

Jiang Hui-Feng (江慧丰), Zhang Qing-Chuan (张青川), Sun Liang (孙亮), Wu Xiao-Ping (伍小平)   

  1. Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230027, China
  • Received:2005-10-26 Revised:2006-02-10 Online:2006-05-20 Published:2006-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10232030 and 10372098).

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摘要： In order to compare with annealed Al--4%Cu alloys, the influence of solute concentration on the serrated flow is investigated by solution treatment. In this paper, some dynamic parameters, such as critical time and the ultimate tensile strength are obtained. Moreover, the change of the strain rate range for serrated flow in Al--4%Cu alloys prepared by annealing and quenching heat treatments is reported too. The difference between them is attributed to the increasing solute concentration in the bulk of the solution treated materials.

Abstract: In order to compare with annealed Al--4%Cu alloys, the influence of solute concentration on the serrated flow is investigated by solution treatment. In this paper, some dynamic parameters, such as critical time and the ultimate tensile strength are obtained. Moreover, the change of the strain rate range for serrated flow in Al--4%Cu alloys prepared by annealing and quenching heat treatments is reported too. The difference between them is attributed to the increasing solute concentration in the bulk of the solution treated materials.

Key words: Portevin--Le Chatelier effect, solution treatment, dynamic strain aging

中图分类号:  (Deformation and plasticity)

  • 62.20.F-
81.40.Ef (Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization) 81.40.Lm (Deformation, plasticity, and creep)