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Influence of ball‐milling on the oxidation behavior of Ag–Zn alloy powders
Author(s) -
Yi D. Q.,
Wu C. P.,
Goto S.,
Xu C. H.,
Li J.,
Wang B.,
Xiao L. R.,
Zheng F.
Publication year - 2010
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.200905334
Subject(s) - alloy , microstructure , ball mill , materials science , metallurgy , internal oxidation , ball (mathematics) , oxygen , chemical engineering , chemistry , mathematical analysis , mathematics , organic chemistry , engineering
The gas atomized Ag–15.2 at% Zn alloy powders were treated using ball‐milling. The effect of ball‐milling on surface morphology, microstructure, and oxidation behavior of the alloy powders was investigated. The results showed that ball‐milling treatment enhanced the oxidation rate of Ag–Zn alloy powders due to the increase of dislocation density and the decrease of the diffusion distance of oxygen during internal oxidation. The fully oxidized time of Ag–Zn alloy powders decreases with the ball‐milling time. In addition, the ball‐milling treatment not only changes the oxidation mechanism but also improves microstructure and properties of the Ag–ZnO materials fabricated by internal oxidation.