Effect of High-Speed Impact Compression on Natural Aging and Subsequent Artificial Aging of a 6061 Aluminum Alloy

• Ogura Tomo

  Division of Materials and Manufacturing Science, Osaka University

• Horikawa Keitaro

  Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University

• Kitani Yuki

  Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University

• Miara Mami

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

• Kim SeongNyeong

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

• Kobayashi Equo

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

• Sato Tatsuo

  Precision and Intelligence Laboratory, Tokyo Institute of Technology

• Kobayashi Hidetoshi

  Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University

Abstract

The effect of high-speed impact compression on natural aging and subsequent artificial aging of a 6061 aluminum alloy was investigated using Micro-Vickers hardness test, differential scanning calorimetry (DSC) analysis and transmission electron microscopy (TEM). The suppression of natural age-hardening was clearly seen in the alloy with high-speed impact compression. TEM observation showed that fine β” precipitates was formed during artificial aging even after high-speed impact compression and natural aging. Maximum hardness of the peak-aged alloys with high-speed compression was almost the same as that without natural aging, showing that negative effect of two step aging was almost overcome by high-speed impact compression.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 57 (8), 1282-1286, 2016

  The Japan Institute of Metals and Materials

Keywords

• aluminum-magnesium-silicon alloy
• point defects
• vacancy
• high-speed deformation
• age-hardening

Details

• CRID: 1390282679230037888
• NII Article ID: 130005165719
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.l-m2016819
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 027512458
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027512458
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/57/8/57_L-M2016819/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed