Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering
Nickel powders of nominal sizes (i.e., 50 nm, 300 nm, and 2 μm) were pre-coated on copper substrates and then subjected to laser shock processing (LSP) for producing nickel coating. The shockwave consolidation behavior, microstructure, and bonding performance were investigated as a function of parti...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423008566 |
| _version_ | 1797798749877043200 |
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| author | Youjuan Ma Xiao Wang Zhen Dong Xin Hou Tao Wang Wenxiang Sun Huixia Liu |
| author_facet | Youjuan Ma Xiao Wang Zhen Dong Xin Hou Tao Wang Wenxiang Sun Huixia Liu |
| author_sort | Youjuan Ma |
| collection | DOAJ |
| description | Nickel powders of nominal sizes (i.e., 50 nm, 300 nm, and 2 μm) were pre-coated on copper substrates and then subjected to laser shock processing (LSP) for producing nickel coating. The shockwave consolidation behavior, microstructure, and bonding performance were investigated as a function of particle size. Results indicated that nano-coating had better surface quality, decreased microstructural defects (pores and cracks), and higher bonding strength (approximately twice the hardness value) than its micro-counterpart. Microstructure analysis revealed that nano/submicron particles were consolidated by a mixed solid-liquid sintering behavior, whereas micron particles were consolidated only by solid-state sintering under laser shock. A mixed microstructure of nanocoating was obtained, consisting of solid-state atomic bonds between solid-state sintered particles and amorphous phases between liquid-phase sintered particles. After LSP, the cold shock characteristics of LSP could not only reduce the overall grain growth and oxidation of nano coating, but also induce fine nanocrystalline at the inter-particle interface of the micron coating by dynamic recrystallization. |
| first_indexed | 2024-03-13T04:09:31Z |
| format | Article |
| id | doaj.art-93b7b62537164ac68802069a93d6accd |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:31Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj.art-93b7b62537164ac68802069a93d6accd2023-06-21T06:56:59ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012454045419Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sinteringYoujuan Ma0Xiao Wang1Zhen Dong2Xin Hou3Tao Wang4Wenxiang Sun5Huixia Liu6School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, ChinaCorresponding author.; School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, ChinaSchool of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, ChinaNickel powders of nominal sizes (i.e., 50 nm, 300 nm, and 2 μm) were pre-coated on copper substrates and then subjected to laser shock processing (LSP) for producing nickel coating. The shockwave consolidation behavior, microstructure, and bonding performance were investigated as a function of particle size. Results indicated that nano-coating had better surface quality, decreased microstructural defects (pores and cracks), and higher bonding strength (approximately twice the hardness value) than its micro-counterpart. Microstructure analysis revealed that nano/submicron particles were consolidated by a mixed solid-liquid sintering behavior, whereas micron particles were consolidated only by solid-state sintering under laser shock. A mixed microstructure of nanocoating was obtained, consisting of solid-state atomic bonds between solid-state sintered particles and amorphous phases between liquid-phase sintered particles. After LSP, the cold shock characteristics of LSP could not only reduce the overall grain growth and oxidation of nano coating, but also induce fine nanocrystalline at the inter-particle interface of the micron coating by dynamic recrystallization.http://www.sciencedirect.com/science/article/pii/S2238785423008566Laser shock processingCoatingsShock sinteringNickel powderParticle sizeMicrostructure |
| spellingShingle | Youjuan Ma Xiao Wang Zhen Dong Xin Hou Tao Wang Wenxiang Sun Huixia Liu Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering Journal of Materials Research and Technology Laser shock processing Coatings Shock sintering Nickel powder Particle size Microstructure |
| title | Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering |
| title_full | Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering |
| title_fullStr | Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering |
| title_full_unstemmed | Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering |
| title_short | Effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering |
| title_sort | effect of particle size on the microstructure and consolidation behavior of nickel coating fabricated by laser shockwave sintering |
| topic | Laser shock processing Coatings Shock sintering Nickel powder Particle size Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423008566 |
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