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 language | English |
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Article number | 63712 |
Pages (from-to) | 1171-1175 |
Number of pages | 5 |
Journal | Transactions of Nonferrous Metals Society of China (English Edition) |
Volume | 25 |
Issue number | 4 |
DOIs | |
State | Published - 1 Apr 2015 |
Keywords
- diffusion behavior
- interface
- metallic glasses
- nano-crystal