| Effect of laser cladding layers on microstructure and mechanical properties of NiCoCrAlY bond coat | |
Geng, Chuanqing; Zhang, Zhanfei; Xie, Huimin; Liu F(刘飞)
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| Source Publication | MATERIALS TODAY COMMUNICATIONS
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| 2024-12 | |
| Volume | 41Pages:110930 |
| Abstract | The NiCoCrAlY alloy is usually used as a bonding layer material in thermal barrier coatings (TBCs) system. Owing its excellent high-temperature oxidation resistance and corrosion resistance, it plays a crucial role in maintaining the structural integrity and functionality of TBCs. Laser cladding technology is a flexible and efficient processing technique for the manufacturing of NiCoCrAlY bond coat, with the characteristics of precisely control the layers of the laser cladding and further modulate the quality of the bond coat. Therefore, the investigation on the influence of cladding layers on the microstructure and mechanical properties of the bond coat is of great significance for improving the service performance and lifetime of aircraft engines. To this end, the scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD) were used in this study to explore the influence of cladding layers on the microstructure and mechanical properties of the NiCrAlCoY bond coat. The results indicate that the microstructure of the cladded alloy can be divided into substrate, heat-affected zone, and cladded zone. The hardness of both the heat-affected zone and the cladded zone increases as the number of cladding layers increases, while the hardness of the substrate maintains constant. In addition, as the number of laser cladding layers increases, so does the residual stress of the cladded alloy. |
| Keyword | Electron Backscatter Diffraction Laser cladding NiCrAlCoY bond coat Residual stress Thermal barrier coating |
| DOI | 10.1016/j.mtcomm.2024.110930 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001355805900001 |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| Funding Organization | National Natural Sci-ence Foundation of China {12032013, 12327801, 11972209] |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Xie HM ; Liu F |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/97163 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.【Geng, Chuanqing & Zhang, Zhanfei & Xie, Huimin】 Tsinghua Univ, Sch Aerosp Engn, AML, Beijing 100084, Peoples R China 2.【Liu, Fei】 Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Geng, Chuanqing,Zhang, Zhanfei,Xie, Huimin,et al. Effect of laser cladding layers on microstructure and mechanical properties of NiCoCrAlY bond coat[J]. MATERIALS TODAY COMMUNICATIONS,2024,41:110930.Rp_Au:Xie HM, Liu F |
| APA | Geng, Chuanqing,Zhang, Zhanfei,Xie, Huimin,&刘飞.(2024).Effect of laser cladding layers on microstructure and mechanical properties of NiCoCrAlY bond coat.MATERIALS TODAY COMMUNICATIONS,41,110930. |
| MLA | Geng, Chuanqing,et al."Effect of laser cladding layers on microstructure and mechanical properties of NiCoCrAlY bond coat".MATERIALS TODAY COMMUNICATIONS 41(2024):110930. |
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