中文摘要：

尽管他们的韧性通常同时被减少，工作变硬是在变丑期间发生在水晶的金属的著名现象，它广泛地被用来增加金属的力量。这里，我们报导塑料 Zr41Ti14Cu12.5Ni10Be22.5 (at.%) 拉紧体积金属性的眼镜为在抑制条件下面经历了变丑前的样品为当演员组样品从 0.3% 被增加了到 2.5%8.0% 。预先使变形的玻璃质的合金拥有更多的免费体积并且丰富介绍砍乐队，它被相信支持激活砍乐队在变丑以后并且在粘性的增加的结果。取向预先介绍砍相对装载方向的乐队将影响预先使变形的样品的变丑行为。现在的结果证明这玻璃质的合金的变丑前将导致韧化的工作。韧化效果的这个工作能被在 sub-T g (玻璃转变) 的等温的退火移开温度，哪个免费体积的原因歼灭并且愈合砍乐队。

英文摘要：

Work hardening is a well-known phenomenon occurring in crystalline metals during deformation,which has been widely used to increase the strength of metals although their ductility is usually reduced simultaneously. Here we report that the plastic strain of Zr41Ti14Cu12.5Ni10Be22.5 （at.%） bulk metallic glasses has been increased from 0.3% for the as-cast sample to 2.5%-8.0% for samples that have experienced pre-deformation under constrained conditions. The pre-deformed glassy alloys possess more free volume and abundant introduced shear bands,which are believed to promote the activation of shear bands in post-deformation and result in an increase in plasticity. The orientation of the pre-introduced shear bands relative to the loading direction will affect the deformation behavior of pre-deformed samples. The present results show that pre-deformation of this glassy alloy will result in work toughening. This work toughening effect can be removed by isothermal annealing at a sub-Tg （glass transition） temperature,which causes annihilation of free volume and healing of shear bands.