Passivation behaviour of structurally relaxed Zr48Cu36Ag8Al8 metallic glass
Passivation behaviour of structurally relaxed Zr48Cu36Ag8Al8 metallic glass
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DOI：
10.1016/j.jallcom.2009.01.056
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发表时间：
2009-06
影响因子：
6.2
通讯作者：
J. Jayaraj;A. Gebert;L. Schultz
中科院分区：
文献类型：
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作者：
J. Jayaraj;A. Gebert;L. Schultz
研究了zr48cu36ag8al8玻璃合金在1M H2SO4中的电化学腐蚀行为。结果表明，zr48cu36ag8al8玻璃合金的主-被动转变行为取决于金属玻璃合金中自由体积（FV）的含量。zr48cu36ag8al8玻璃合金在较高的FV量下处于高能亚稳态时，由于Cu的活性溶解导致钝化效果较差。结果表明，通过减少玻璃中FV的量，钝化性能得到显著改善。
The electrochemical corrosion behaviour of as-prepared and structurally relaxed Zr48Cu36Ag8Al8glassy alloy samples was investigated in 1M H2SO4. Results show that the active–passive transition behaviour of Zr48Cu36Ag8Al8glassy alloy depends on the amount of free volume (FV) present in the metallic glassy alloy. Poor passivation due to active dissolution of Cu was displayed by the Zr48Cu36Ag8Al8glassy alloy when it was in a high energy metastable state with relative high amount of FV. It is shown that by reducing the amount of FV in the glass, the passivation behaviour is significantly improved.