Microstructure and hardness of CoNiCrFeTix high-entropy alloy coatings prepared by laser cladding: Combining experimental and molecular dynamics simulation
文献类型：期刊论文
| 作者 | Xie, Lu; Wu, Guangda; Fu, Xuefei; Wang, Xinyang; Li, Chunyang; Peng Q(彭庆); Wang, Wenrui; Zhang, Yong ; Huang, Yanbin
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| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2024-08 |
| 卷号 | 40页码:109597 |
| 关键词 | Laser cladding High-entropy alloy Molecular dynamics Microhardness Nanoindentation |
| DOI | 10.1016/j.mtcomm.2024.109597 |
| 英文摘要 | Laser cladding technology offers several advantages over alternative coating methods, including rapid cooling, low dilution rate, and effective metallurgical bonding between the coating and matrix. However, there is limited understanding regarding the microstructures and properties of laser-cladded high-entropy alloy (HEA) coatings. Thus, our research aims to investigate the characteristics and performance of CoNiCrFeTix (x = 0.1, 0.3, 0.5, 0.7) HEA coatings, produced through laser cladding, on Q235 steel substrates We employ molecular dynamics (MD) simulation and experimental techniques to examine the impact of Ti element content on the structure and hardness of the cladding layer. The MD simulation accurately reproduces the melting and nucleation processes of crystal structures, providing insights beyond what is observable through experiments alone. Our results reveal that the cladding layer is predominantly composed of an FCC phase, with an increasing presence of a BCC phase as the Ti content rises. Correspondingly, experimental observations confirm that the CoNiCrFeTix HEA coating primarily consists of the FCC phase, while FeCr, Ni2Ti, and Co2Ti phases emerge with higher Ti content.The cladding layer exhibits a characteristic dendritic (DR) structure, where the interdendritic (ID) region expands as Ti content increases. Additionally, we conducted surface hardness testing on the cladding layer. The hardness of the cladding layer increases with the increase of Ti content, and the increase in Ti content enhances the stability of the dislocation density in the cladding layer. |
| 分类号 | 二类 |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001325750600001 |
| 资助机构 | National Key R & D Program of China {2020YFA0405700] ; National Natural Science Foundation of China {12272378] ; High-level Innovation Research Institute Program of Guangdong Province {2020B0909010003] ; LiYing Program of the Institute of Mechanics, Chinese Academy of Sciences {E1Z1011001] |
| 其他责任者 | Xie L ; Wang WR |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97162]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.【Li, Chunyang】 China Aerosp Sci & Ind Corp, Inner Mongolia, Peoples R China 2.【Peng, Qing】 Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.【Peng, Qing】 Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 4.【Zhang, Yong】 Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China 5.【Wang, Xinyang & Huang, Yanbin】 Army Acad Armored Forces, Equipment Support & Remfg Dept, Beijing 100072, Peoples R China 6.【Fu, Xuefei】 Huai Hai Ind Grp CO LTD, Changzhi, Shanxi, Peoples R China 7.【Wu, Guangda】 Aero Engine Corp China, Beijing 102200, Peoples R China 8.【Xie, Lu & Wu, Guangda & Wang, Wenrui】 Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Lu,Wu, Guangda,Fu, Xuefei,et al. Microstructure and hardness of CoNiCrFeTix high-entropy alloy coatings prepared by laser cladding: Combining experimental and molecular dynamics simulation[J]. MATERIALS TODAY COMMUNICATIONS,2024,40:109597. |
| APA | Xie, Lu.,Wu, Guangda.,Fu, Xuefei.,Wang, Xinyang.,Li, Chunyang.,...&Huang, Yanbin.(2024).Microstructure and hardness of CoNiCrFeTix high-entropy alloy coatings prepared by laser cladding: Combining experimental and molecular dynamics simulation.MATERIALS TODAY COMMUNICATIONS,40,109597. |
| MLA | Xie, Lu,et al."Microstructure and hardness of CoNiCrFeTix high-entropy alloy coatings prepared by laser cladding: Combining experimental and molecular dynamics simulation".MATERIALS TODAY COMMUNICATIONS 40(2024):109597. |
入库方式： OAI收割
来源：力学研究所
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