Coarsening Kinetics of Al<SUB>3</SUB>Sc Precipitates in an Al–Mg–Sc Alloy Aged at 573 K

• Watanabe Daizen

  Division of Innovative Technology and Science, Kanazawa University

• Watanabe Chihiro

  Division of Innovative Technology and Science, Kanazawa University

• Monzen Ryoichi

  Division of Innovative Technology and Science, Kanazawa University

Bibliographic Information

Other Title

• Coarsening kinetics of Al3Sc precipitates in an Al-Mg-Sc alloy aged at 573K
• Coarsening Kinetics of Al<SUB>3</SUB>Sc Precipitates in an Al&ndash;Mg&ndash;Sc Alloy Aged at 573 K

Abstract

The coarsening of Al₃Sc precipitates in an Al–1 mass%Mg–0.27 mass%Sc alloy aged at 573 K has been examined using a model developed by Kuehmann and Voorhees. The average size of Al₃Sc precipitates was evaluated by transmission electron microscopy and electrical resistivity was employed to measure the Sc concentration in the matrix. Kinetic analyses revealed that before the onset of a coarsening stage, there exist mixed stages of nucleation and growth and of growth and coarsening. The coherent Al/Al₃Sc interface energy γ is estimated as 0.23 Jm⁻² from data on coarsening alone. The transition from a coherent interface to a semi-coherent interface caused no change in γ.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 48 (6), 1571-1574, 2007

  The Japan Institute of Metals and Materials

Keywords

• coarsening
• coherency
• interface energy
• Al<SUB>3</SUB>Sc precipitates
• aluminum–magnesium–scandium alloy

Details

• CRID: 1390001204251250048
• NII Article ID: 10019487216
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.mrp2007048
• COI: 1:CAS:528:DC%2BD2sXnvVWqsbw%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 8743024
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8743024
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/48/6/48_MRP2007048/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed