Improve wear resistance CoCrFeMnNiTix/WC high entropy alloy-ceramic composite coatings with hybrid ex/in-situ multi-scale reinforcement phase fabricating by laser cladding
文献类型：期刊论文
| 作者 | Liu, Hao5; Li, Dali5; Wu, Dexi5; Wang, Wenqin4; Pan, Sining3; Chen, Peijian2; He XL(何秀丽)1; Yu G(虞钢)1; Zhang, Tong5 |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 51期号:23页码:40335-40348 |
| 关键词 | High entropy alloys Multi-scale precipitations Microstructure evolution Wear resistance |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2025.06.268 |
| 通讯作者 | Wu, Dexi(ts24050067a31ld@cumt.edu.cn) |
| 英文摘要 | To improve the hardness and wear resistance of high-entropy alloy coatings, laser cladding (LC) technology was successfully used to prepare CoCrFeMnNi high-entropy alloy coatings enhanced with multi-scale precipitations phases ranging from the nanometer to micron scale. The microstructure evolution of high entropy alloy matrix was investigated, with increasing Ti content, the high-entropy alloy matrix from an FCC solid solution to an FCC + BCC dual-phase structure. Simultaneously, sub-micron (Ti,W)C particles were formed in-situ. The volume fractions of BCC and (Ti,W)C gradually increase, and the (Ti,W)C particles exhibit aggregation, while the degree of WC melting increases. Specifically, in the CoCrFeMnNiTi1/WC coating, a very fine lamellar eutectic structure composed of alternating FCC and BCC phases was observed, with a layer spacing of 100-170 nm. In this coating, the interface relationship between high-entropy alloy matrix and (Ti,W)C was identified as a semi-coherent interface, with the orientation relationship between (Ti,W)C and FCC being (100)(Ti,W)C//(110)FCC and (020)(Ti,W)C//(111)FCC, with an interface energy of 0.71 J/m2. In local areas of CoCrFeMnNiTi1/WC coating, a rod-like eutectic structure and nanoscale BCC phase precipitation were observed. Furthermore, as the Ti content increased, the mechanical properties of the coating were significantly enhanced. The mechanical properties of the coatings are enhanced through a combination of multiple strengthening mechanisms. Compared to other coatings, the CoCrFeNiMnTi1.5/WC coating exhibits the highest microhardness (622.5 HV0.3) and the smallest wear volume of 6.16 x 10-6 mm3/(N & sdot;m), demonstrating the best wear resistance. |
| 分类号 | 一类 |
| WOS关键词 | MECHANICAL-PROPERTIES ; MATRIX COMPOSITE ; MICROSTRUCTURES ; BEHAVIOR ; FILMS |
| 资助项目 | National Natural Science Foundation of China[52375223] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001567956700003 |
| 资助机构 | National Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| 其他责任者 | Wu, Dexi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/103910]  |
| 专题 | 宽域飞行工程科学与应用中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221116, Peoples R China; 3.Hezhou Univ, Sch Artificial Intelligence, Hezhou 542899, Peoples R China; 4.Nanchang Univ, Sch Adv Mfg, Nanchang 330031, Peoples R China; 5.China Univ Min & Technol, Sch Mech & Elect Engn, Xuzhou 221116, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu, Hao,Li, Dali,Wu, Dexi,et al. Improve wear resistance CoCrFeMnNiTix/WC high entropy alloy-ceramic composite coatings with hybrid ex/in-situ multi-scale reinforcement phase fabricating by laser cladding[J]. CERAMICS INTERNATIONAL,2025,51(23):40335-40348. |
| APA | Liu, Hao.,Li, Dali.,Wu, Dexi.,Wang, Wenqin.,Pan, Sining.,...&Zhang, Tong.(2025).Improve wear resistance CoCrFeMnNiTix/WC high entropy alloy-ceramic composite coatings with hybrid ex/in-situ multi-scale reinforcement phase fabricating by laser cladding.CERAMICS INTERNATIONAL,51(23),40335-40348. |
| MLA | Liu, Hao,et al."Improve wear resistance CoCrFeMnNiTix/WC high entropy alloy-ceramic composite coatings with hybrid ex/in-situ multi-scale reinforcement phase fabricating by laser cladding".CERAMICS INTERNATIONAL 51.23(2025):40335-40348. |
入库方式： OAI收割
来源：力学研究所
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