| Autor: |
LI Rong-de, Xin-Ying Song, Ke-qiang Qiu, Lin Wang, Ying-lei Ren, Li-Li Fu |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
DEStech Transactions on Engineering and Technology Research. |
| ISSN: |
2475-885X |
| DOI: |
10.12783/dtetr/mdm2016/4927 |
| Popis: |
Mg81Ni8Zn5Y6 bulk metallic glass matrix composite samples with long-period stacking ordered(LPSO) structure were fabricated by conventional Cu-mold casting method and the shear scenarios of them were investigated under uniaxial compressive loading with different stresses. The phase formation and spatial microstructure of the alloy were investigated by using X-ray diffraction and scanning electron microscopy. The fracture scenarios were analyzed based on the observation of the lateral surfaces and the fracture surfaces. Six stages can be outlined as stress concentration, embryonic shear bands formation, mature shear bands formation, shear bands propagation, shear band multiplication and shear-off. The influence of the LPSO phase on the fracture mechanism of the Mg-based amorphous matrix composite during the fracture process was systemically described. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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