Fatigue Behavior of Zr58Cu15.46Ni12.74Al10.34Nb2.76Y0.5 Bulk Metallic Glass Fabricated by Industrial-Grade Zirconium Raw Material
| Autor: | Chengyong Wang, Min Zhang, Jiedan Yang, Yong Zhang, Tao Zhang, Shichao Zhou, L. Li |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
lcsh:TN1-997
010302 applied physics Zirconium Materials science Amorphous metal Metals and Alloys chemistry.chemical_element Fractography 02 engineering and technology Bending 021001 nanoscience & nanotechnology industrial-grade zirconium raw material 01 natural sciences Fatigue limit Amorphous solid Stress (mechanics) chemistry bulk metallic glass (BMG) 0103 physical sciences Ultimate tensile strength General Materials Science Composite material 0210 nano-technology lcsh:Mining engineering. Metallurgy fatigue behavior |
| Zdroj: | Metals Volume 11 Issue 2 Metals, Vol 11, Iss 187, p 187 (2021) |
| ISSN: | 2075-4701 |
| DOI: | 10.3390/met11020187 |
| Popis: | In this work, the fatigue behavior of a low-cost Zr58Cu15.46Ni12.74Al10.34Nb2.76Y0.5 (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. |
| Databáze: | OpenAIRE |
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