Study of Tensile Fracture and Interfacial Strength of 316L/Q345R Stainless Steel Composite Plate Based on Molecular Dynamics
This study employs molecular dynamics (MD) simulations to investigate the interface adhesive strength of 316L/Q345R stainless steel composite plates. An atomic model of the 316L/Q345R interface was developed, and tensile performance simulations were conducted to analyze the effects of temperature an...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-04-01
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| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/15/5/502 |
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| Summary: | This study employs molecular dynamics (MD) simulations to investigate the interface adhesive strength of 316L/Q345R stainless steel composite plates. An atomic model of the 316L/Q345R interface was developed, and tensile performance simulations were conducted to analyze the effects of temperature and strain rate on the material’s mechanical properties. The results demonstrate that the 316L/Q345R interface exhibits superior strength and plasticity compared to both Q345R and 316L individually, with the interface strength being 19.61% higher than Q345R and 29.98% higher than 316L. The study reveals that the ultimate stress of the interface decreases with increasing temperature in the range of 300 K to 600 K, showing a reduction of approximately 0.06 σ<sub>0</sub> for every 100 K increase. Additionally, within the strain rate range of 4 × 10<sup>7</sup> s<sup>−1</sup> to 4 × 10<sup>8</sup> s<sup>−1</sup>, both the ultimate stress and fracture strain of the interface decrease as the strain rate increases. These findings provide valuable insights into the interface performance of 316L/Q345R stainless steel composite plates, contributing to the understanding of their mechanical behavior under various conditions. |
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| ISSN: | 2075-4701 |