In this work, the fatigue behavior of a low-cost Zr₅₈Cu_15.46Ni_12.74Al_10.34Nb_2.76Y_0.5 (at%) bulk metallic glass (BMG) fabricated by industrial-grade Zirconium raw material was investigated under three-point bending loading mode. X-ray, fatigue tests under different stress amplitude and fatigue fractography were conducted in order to characterize the amorphous structure, fatigue stress-life (S-N) curve and fracture mechanism, respectively. It is found that the X-ray diffraction (XRD) result showed a fully amorphous structure due to high glass-forming ability, cracks initiated from inclusions near the rectangular corners at tensile surfaces and the fatigue endurance limit (~168 MPa) and fatigue ratio (~0.13) termed as fatigue endurance limit divided by ultimate tensile strength in stress amplitude were comparable to the similar BMG prepared by high pure raw materials.

中文翻译：

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工业级锆原料制备的Zr58Cu15.46Ni12.74Al10.34Nb2.76Y0.5大块金属玻璃的疲劳行为

在这项工作中，低成本Zr ₅₈ Cu _15.46 Ni _12.74 Al _10.34 Nb _2.76 Y _0.5的疲劳行为在三点弯曲加载模式下，研究了由工业级锆原料制成的（at％）大块金属玻璃（BMG）。为了表征非晶结构，疲劳应力-寿命（SN）曲线和断裂机理，分别进行了X射线，不同应力幅值和疲劳断裂形貌的疲劳试验。发现X射线衍射（XRD）结果显示出由于高玻璃形成能力，拉伸表面矩形角附近的夹杂物引起的裂纹以及疲劳极限（〜168 MPa）和疲劳比而导致的完全非晶结构（〜0.13）被称为疲劳耐久性极限除以应力振幅的极限抗拉强度，可与由高纯原材料制备的类似BMG相媲美。