Effect of Sn Addition on the Precipitation Behavior in AZ91 Magnesium Alloy

• Kim Jeong Kyun

  Department of Materials Science and Engineering, Center for Noncrystalline Materials, Yonsei University

• Oh Seung Hyun

  Department of Materials Science and Engineering, Center for Noncrystalline Materials, Yonsei University

• Kim Kang Cheol

  Department of Materials Science and Engineering, Center for Noncrystalline Materials, Yonsei University

• Kim Won Tae

  Department of Optical Engineering, Cheongju University

• Kim Do Hyang

  Department of Materials Science and Engineering, Center for Noncrystalline Materials, Yonsei University

抄録

The effect of Sn (1, 3 and 5 mass%) addition on the precipitation behavior of AZ91 alloy has been investigated in the present study. The addition of Sn is effective in suppression of discontinuous precipitation as well as acceleration of continuous precipitation. The Mg₂Sn particles at the grain boundary effectively reduce the nucleation sites for discontinuous β precipitates, and slow down the movement of the grain boundary. The addition of Sn remarkably enhances the aging response of AZ91. The hardness increases steeply with the start of the aging treatment, resulting in significantly higher peak hardness within shorter aging time. The addition of Sn enhances the aging response by solid solution hardening effect as well as by co-precipitation of Mg₁₇Al₁₂ and Mg₂Sn in the α-Mg matrix.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 58 (6), 963-966, 2017

  公益社団法人 日本金属学会

キーワード

• magnesium-aluminum alloy
• discontinuous precipitation
• age hardening

詳細情報

• CRID: 1390282679231648512
• NII論文ID: 130005679016
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2017011
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 028195778
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028195778
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/58/6/58_M2017011/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可