中文摘要：

没有任何房间温度粘性的意外制造严重地限制体积的潜在的结构的应用金属性的眼镜(BMG ) ，特别 La- ，基于 Mg 、基于 Fe 的。在这研究，一个简单免费腐蚀方法被提供改进粘性一易碎(La， Ce ) 由高密度的腐蚀的介绍的基于的 BMG 在表面上背叛。在 0.1 沉浸时间的影响 ? mol/L H ₂ 那么 ₄ 表面形态学和 BMG 的机械性质上的水的答案被评估。与增加从 5 ～ 30 沉浸时间 ? min，显然增加的表面腐蚀的度，和腐蚀缺点的分发变得更同质。在样品，让步的现象和某些粘性在表面处理以后出现了直到 0.3% 。让步和粘性能被归因于更容易的成核砍缺点表面上而非在光洁表面上的乐队。结果提供了一个新奇方法改进 BMG 的粘性。

英文摘要：

Unexpected facture without any room-temperature plasticity severely limits potential structural applications of bulk metallic glasses （BMGs）, especially La-, Mg- and Fe-based ones. In this study, a simple free corrosion method was provided to improve the plasticity of a brittle （La, Ce）-based BMG by the introduction of high-density corrosion defects on the surface. The influences of immersing time in 0.1 mol/L H2SO4 aqueous solution on the surface morphology and mechanical properties of the BMG were evaluated. With increasing immersing time from 5 to 30 min, the degree of surface corrosion increased obviously, and the distribution of corrosion defects became more homogenous. In the samples, the yielding phenomenon and certain plasticity appeared up to 0.3% after the surface treatment. The yielding and plasticity can be attributed to easier nucleation of shear bands on the defect surface rather than on the glabrous surface. The results provided a novel method to improve the plasticity of BMGs.