通过充氢和未充氢缺口试样和三点弯曲试样在SEM下的原位加载，研究了氢对Zr65Al7.5Ni10Cu17.5块状非晶形变和开裂过程的影响，结果表明：无论是否有氢，大块非晶的剪切带发展到临界条件，剪切裂纹就沿剪切带形核、扩展，它一旦张开就导致快速的断裂。断口上的无特征区是剪切带，而不是剪切裂纹断口；剪切断口形貌和拉伸断口形貌没有本质区别。对Zr65Al7.5Ni10Cu17.5非晶，只有当长时间充氢才能形成氢鼓泡，如鼓泡很小或尚未形成，则氢对剪切带以及裂纹的形核、扩展没有明显影响。如存在较大的氢鼓泡，则当剪切带尚未充分发展时微裂纹就形核，导致低应力脆断。
The effect of hydrogen on shear bands and cracking in bulk metallic glass of Zr65Al7.5Ni10Cu17.5 has been studied through in situ tensile and banding tests in SEM using a single-edge notched and smooth three-point samples. The results show that for either hydrogen-free or hydrogenated samples, shear crack will initiate and propagate along shear bands when shear bands grow a certain condition, and opening of shear crack under a tensile stress results in rapid fracture of samples. The characterless zone on the fracture is the shear band instead of fracture surface of shear crack. There is no essential difference between tensile and shear fracture surfaces. Hydrogen blistering will form after charging for a long time, if hydrogen blistering is very small or unformed, there is no evident effect of hydrogen on forming of shear bands and initiating of crack. If the hydrogen blistering is large, the shear crack will initiate at the early stage of growing shear band, resulting in brittle fracture under low stress.
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