利用扫描隧道显微镜（STM），在微观尺度上原位观察非晶合金在酸性介质中的溶解行为。研究表明：非晶合金的溶解过程可分成两个阶段，即材料表层的溶解阶段和基体的溶解阶段。材料表层的溶解行为受制于机加工因素；基体的溶解行为受制于微观组织结构。非晶合金基体在亚微观尺度下仍具有极高的均匀腐蚀程度。而对非晶合金均匀腐蚀过程进行微观尺度再认识发现，非晶合金以Bernal 多面体为基本单位参与腐蚀反应。非晶合金宏观均匀溶解过程在微观尺度上表现为在材料的任意部位上阴极、阳极区交替出现，这种过程的均衡发展导致材料电化学腐蚀在宏观上的均匀分布。
The dissolution behavior of FeNiSiB amorphous alloy has been studied by STM in situ.The dissolution process of the amorphous alloy can be divided into two periods:surface dissolution and matrix dissolution.The surface dissolution behavior is dependent on the manufacture process while the sturcture characteristics play an important role in the dissolution process of matrix.General corrosion occurs on the amorphous alloy even in nanoscale.The general corrosion process of amorphous alloy has been detected again in microscale by STM in situ.The smallest unit that takes part in the corrosion is Bernal polyhedron.General corrosion can be described as that any part of the surface will be anodic region or cathodic region in defferent corrosion period.The harmonious development of this process led to the general corrosion mode in macroscale.
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