The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic Glasses
In this work, the shock wave response of a pore-embedded CuZr metallic glass (PEMG) under different impact velocities (0.5–1.5 km/s) and initial temperatures (300–600 K) was evaluated through the molecular dynamics (MD) simulation. The results indicated that the nucleation and growth of nanoscale sh...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/6111294 |
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| author | Indrajit Patra Ahmed M. Abdulhadi Fatima Safaa Fahim Bashar S. Bashar Taif Alawsi Mohammad Salmani |
| author_facet | Indrajit Patra Ahmed M. Abdulhadi Fatima Safaa Fahim Bashar S. Bashar Taif Alawsi Mohammad Salmani |
| author_sort | Indrajit Patra |
| collection | DOAJ |
| description | In this work, the shock wave response of a pore-embedded CuZr metallic glass (PEMG) under different impact velocities (0.5–1.5 km/s) and initial temperatures (300–600 K) was evaluated through the molecular dynamics (MD) simulation. The results indicated that the nucleation and growth of nanoscale shear events around the pore were the dominant mechanisms for plastic deformation under the shock wave. It was also found that the increase in the impact velocity led to the filling of pore, which was due to the structural softening and the local temperature increment in the vicinity of pore. Moreover, the spall event originated from the formation and coalescence of tension transformation zones, leading to the formation of nanovoids in the system. At higher velocities, the spallation was accompanied with the formation of more nanovoids with smaller sizes, inducing the brittle failure in the system. The MD outcomes also showed that the increase in initial temperature decreased the shock pressure and flow shear stress and led to the smoother spallation in the PEMG. |
| format | Article |
| id | doaj-art-2852cc3d94eb40b1bff8436d146ad8e7 |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2852cc3d94eb40b1bff8436d146ad8e72025-02-03T05:50:41ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/6111294The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic GlassesIndrajit Patra0Ahmed M. Abdulhadi1Fatima Safaa Fahim2Bashar S. Bashar3Taif Alawsi4Mohammad Salmani5Independent ResearcherCivil Engineering DepartmentAnesthesia Techniques DepartmentAl-Nisour University CollegeScientific Research CenterDepartment of EngineeringIn this work, the shock wave response of a pore-embedded CuZr metallic glass (PEMG) under different impact velocities (0.5–1.5 km/s) and initial temperatures (300–600 K) was evaluated through the molecular dynamics (MD) simulation. The results indicated that the nucleation and growth of nanoscale shear events around the pore were the dominant mechanisms for plastic deformation under the shock wave. It was also found that the increase in the impact velocity led to the filling of pore, which was due to the structural softening and the local temperature increment in the vicinity of pore. Moreover, the spall event originated from the formation and coalescence of tension transformation zones, leading to the formation of nanovoids in the system. At higher velocities, the spallation was accompanied with the formation of more nanovoids with smaller sizes, inducing the brittle failure in the system. The MD outcomes also showed that the increase in initial temperature decreased the shock pressure and flow shear stress and led to the smoother spallation in the PEMG.http://dx.doi.org/10.1155/2022/6111294 |
| spellingShingle | Indrajit Patra Ahmed M. Abdulhadi Fatima Safaa Fahim Bashar S. Bashar Taif Alawsi Mohammad Salmani The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic Glasses Advances in Materials Science and Engineering |
| title | The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic Glasses |
| title_full | The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic Glasses |
| title_fullStr | The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic Glasses |
| title_full_unstemmed | The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic Glasses |
| title_short | The Effects of Temperature and Impact Velocity on the Shock Wave Response of Pore-Embedded Metallic Glasses |
| title_sort | effects of temperature and impact velocity on the shock wave response of pore embedded metallic glasses |
| url | http://dx.doi.org/10.1155/2022/6111294 |
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