Relationship between Minimum Creep Rate and Rupture Life for a Die-Cast Mg-Al-Mn Alloy

• Terada Yoshihiro

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

• Sato Tatsuo

  Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology

抄録

Creep rupture tests were performed for a die-cast Mg-Al-Mn alloy, AM50, at 34 kinds of creep conditions in the temperature range between 423 and 498 K. The creep curve is characterized by a minimum in the creep rate followed by an extended accelerating stage. The minimum creep rate (\\dotε_m) and the creep rupture life (t_rup) follow the phenomenological Monkman-Grant relationship; t_rup=C₀⁄\\dotε_m^m. It is found for the die-cast AM50 alloy that the exponent m is unity and the constant C₀ is 0.13, independent of creep testing temperature. The values of m and C₀ are compared with those for other die-cast magnesium alloys.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 49 (3), 439-442, 2008

  公益社団法人 日本金属学会

キーワード

• magnesium alloy
• die-cast
• creep
• Monkman-Grant relationship

詳細情報

• CRID: 1390001204249656704
• NII論文ID: 10021144581
• NII論文ID: 130004453927
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.mbw200701
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 9412872
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9412872
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/49/3/49_MBW200701/_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