Diffusion behavior of Ni in Zr48Cu36Ag8Al8 bulk metallic glass within supercooled liquid region

Lin Lin Sun, Jun Wang, Hong Chao Kou, Bin Tang, Jin Shan Li, Ping Xiang Zhang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Abstract Diffusion behavior of Ni in Zr48Cu36Ag8Al8 metallic glass was investigated in the temperature range of 683-723 K by secondary ion mass spectrum (SIMS) and transmission electron microscope (TEM). The diffusivity of Ni in Zr48Cu36Ag8Al8 is reasonably fitted by a single Arrhenius relation with small effective activation energy. The diffusivity of Ni in Zr48Cu36Ag8Al8 is an instantaneous function of annealing time in the supercooled liquid region. In addition, a large number of nano-crystals are detected near the interface of Ni-Zr48Cu36Ag8Al8 diffusion couple, and its width is broader than the Ni diffusion depth determined by SIMS. The results indicate that atomic inter-diffusion is an important factor to promote the formation of nano-crystals within the diffusion zone.

Original languageEnglish
Article number63712
Pages (from-to)1171-1175
Number of pages5
JournalTransactions of Nonferrous Metals Society of China (English Edition)
Volume25
Issue number4
DOIs
StatePublished - 1 Apr 2015

Keywords

  • diffusion behavior
  • interface
  • metallic glasses
  • nano-crystal

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