Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium
Enhancing surface wear resistance is critical for uranium (U) and its alloys to retard degradation of their mechanical and physical properties. Deposited nanotwinned (NT) silver (Ag), which is relatively “soft” in-plane and “hard” out-of-plane with respect to surface, may serve as wear-resistant coa...
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424028540 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832595385411960832 |
|---|---|
| author | Kunming Yang Xiaobo Wang Shengfa Zhu Yawen Zhao Qingdong Xu Yiyun Wei Chao Lu Zhiyuan Wen Tongxiang Fan Mingyu Gong Anyi Yin Wenhua Luo |
| author_facet | Kunming Yang Xiaobo Wang Shengfa Zhu Yawen Zhao Qingdong Xu Yiyun Wei Chao Lu Zhiyuan Wen Tongxiang Fan Mingyu Gong Anyi Yin Wenhua Luo |
| author_sort | Kunming Yang |
| collection | DOAJ |
| description | Enhancing surface wear resistance is critical for uranium (U) and its alloys to retard degradation of their mechanical and physical properties. Deposited nanotwinned (NT) silver (Ag), which is relatively “soft” in-plane and “hard” out-of-plane with respect to surface, may serve as wear-resistant coating. In this work, first-principles density functional theory (DFT) calculations were performed to reveal the energetics of possible Ag/α-U interfaces. Meanwhile, molecular statics (MS) and molecular dynamics (MD) simulations were carried out to understand the behaviors of Ag adatoms and the tribological performance of subsequent different textured Ag. The {111}Ag-textured coating with fine twins with small plastic zone, low delamination height and subsequent minimal coefficient of friction (COF) was designed. Furthermore, by controlling the bias voltage of magnetron sputtering from −100 to −800 V, Ag coatings with various surface roughness, grain size, and nanoscale twin density were experimentally deposited on depleted uranium (DU) for tribological performance studies. Microstructural characterizations showed that at the optimized bias voltage of −400 V, the sputter-deposited Ag coating exhibited {111}-oriented texture with high-density nanoscale twins and also well-bonded Ag/DU interface with an UO2 interlayer, thus endowing the Ag coating highly stable wear resistance with low mass wear rate of ∼1.37 × 10−7 g/(N·s). The present findings may shed lights on microstructural and interface design of surface anti-wear coatings on U and its alloys. |
| format | Article |
| id | doaj-art-34e83239f1df4b16b89515c1eadcf090 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-34e83239f1df4b16b89515c1eadcf0902025-01-19T06:25:12ZengElsevierJournal of Materials Research and Technology2238-78542025-01-0134195208Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uraniumKunming Yang0Xiaobo Wang1Shengfa Zhu2Yawen Zhao3Qingdong Xu4Yiyun Wei5Chao Lu6Zhiyuan Wen7Tongxiang Fan8Mingyu Gong9Anyi Yin10Wenhua Luo11Institute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaInstitute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR ChinaState Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR ChinaState Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Corresponding author.Institute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR China; Corresponding author.Institute of Materials, China Academy of Engineering Physics, Mianyang, 621900, PR China; Corresponding author.Enhancing surface wear resistance is critical for uranium (U) and its alloys to retard degradation of their mechanical and physical properties. Deposited nanotwinned (NT) silver (Ag), which is relatively “soft” in-plane and “hard” out-of-plane with respect to surface, may serve as wear-resistant coating. In this work, first-principles density functional theory (DFT) calculations were performed to reveal the energetics of possible Ag/α-U interfaces. Meanwhile, molecular statics (MS) and molecular dynamics (MD) simulations were carried out to understand the behaviors of Ag adatoms and the tribological performance of subsequent different textured Ag. The {111}Ag-textured coating with fine twins with small plastic zone, low delamination height and subsequent minimal coefficient of friction (COF) was designed. Furthermore, by controlling the bias voltage of magnetron sputtering from −100 to −800 V, Ag coatings with various surface roughness, grain size, and nanoscale twin density were experimentally deposited on depleted uranium (DU) for tribological performance studies. Microstructural characterizations showed that at the optimized bias voltage of −400 V, the sputter-deposited Ag coating exhibited {111}-oriented texture with high-density nanoscale twins and also well-bonded Ag/DU interface with an UO2 interlayer, thus endowing the Ag coating highly stable wear resistance with low mass wear rate of ∼1.37 × 10−7 g/(N·s). The present findings may shed lights on microstructural and interface design of surface anti-wear coatings on U and its alloys.http://www.sciencedirect.com/science/article/pii/S2238785424028540Surface wear resistanceSilver coatingUraniumNanoscale twinsInterfacial bonding |
| spellingShingle | Kunming Yang Xiaobo Wang Shengfa Zhu Yawen Zhao Qingdong Xu Yiyun Wei Chao Lu Zhiyuan Wen Tongxiang Fan Mingyu Gong Anyi Yin Wenhua Luo Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium Journal of Materials Research and Technology Surface wear resistance Silver coating Uranium Nanoscale twins Interfacial bonding |
| title | Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium |
| title_full | Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium |
| title_fullStr | Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium |
| title_full_unstemmed | Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium |
| title_short | Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium |
| title_sort | design and fabrication of 111 textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium |
| topic | Surface wear resistance Silver coating Uranium Nanoscale twins Interfacial bonding |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424028540 |
| work_keys_str_mv | AT kunmingyang designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT xiaobowang designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT shengfazhu designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT yawenzhao designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT qingdongxu designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT yiyunwei designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT chaolu designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT zhiyuanwen designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT tongxiangfan designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT mingyugong designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT anyiyin designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium AT wenhualuo designandfabricationof111texturednanotwinnedsilvercoatingforenhancingsurfacewearresistanceofdepleteduranium |