Effect of Heat Treatment on the Serration of Low-Concentrated Al-Zn Alloys

• Sakakibara Akira

• Kanadani Teruto

• Tashiro Tsutomu

• Yoshioka Kazumi

抄録

The effect of heat-treatment conditions on occurrence of serration in Al-Zn alloys was investigated. Specimens were aged for various times up to 2.6Ms at 293K or 273K after quenching from various temperatures (T(Q)), 473K to 853K, and tensile-tested at room temperature. Serration occurred more easily according as T(Q) became lower and the aging time became shorter: in the case that T(Q)=473K serration was observed even after aging for 2.6Ms, while in the case that T(Q)=773K serration did not occur irrespective of aging conditions. Serration was also recognized when the specimens were furnace-cooled from 773K to room temperature. These results together with those obtained by the electrical resistometry suggest that the serration in the low'concentrated Al-Zn alloy is caused by the formation of small GP zones whose Guinier radius is less than 1nm or some sort of solute clusters.

収録刊行物

• Memoirs of the Faculty of Engineering, Okayama University

  Memoirs of the Faculty of Engineering, Okayama University 36 (2), 1-6, 2002-03

  Faculty of Engineering, Okayama University

詳細情報

• CRID: 1390290699799542016
• NII論文ID: 80015497758
• NII書誌ID: AA10699856
• ISSN: 04750071
• DOI: 10.18926/47021
• Web Site: https://ousar.lib.okayama-u.ac.jp/47021
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles