Laser-Based Directed Energy Deposition of Functionally Graded Metal–Ceramic (NiCr–YSZ) System
| العنوان: | Laser-Based Directed Energy Deposition of Functionally Graded Metal–Ceramic (NiCr–YSZ) System |
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| المؤلفون: | M. Sundararaman, Amol A. Gokhale, U. Savitha, G. Jagan Reddy, V. Srinivas |
| المصدر: | Transactions of the Indian National Academy of Engineering. 6:1111-1118 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Thermal barrier coating, Superalloy, Materials science, Residual stress, visual_art, visual_art.visual_art_medium, Ceramic, Composite material, Thermal diffusivity, Microstructure, Yttria-stabilized zirconia, Thermal expansion |
| الوصف: | Additive manufacturing is emerging as a promising technology for fabrication of compositionally graded materials, especially ceramic coatings over metals. The compositionally graded materials are potential candidates for minimizing residual stresses due to abrupt changes in the thermo-physical properties at the metal–ceramic joints. The performance of these additively manufactured compositionally graded materials depends on the microstructure of each layer and the residual stress distribution. This work presents the results of a study on one such additively deposited metal–ceramic combination, NiCr–YSZ, which finds wide applications in thermal barrier coatings. The composites of NiCr–YSZ with varying YSZ contents viz. 15%, 35% and 65% in NiCr were additively deposited on Ni-base superalloy substrate. The deposits were studied for microstructural characteristics and phase analysis. Thermo-physical properties, such as coefficient of thermal expansion and thermal diffusivity, were also evaluated for NiCr–YSZ composites. Further, NiCr–YSZ material combination was additively deposited as discrete interface and as compositionally graded deposits. The through-thickness residual stresses across the build direction were experimentally determined using micro-focus XRD technique and compared. |
| تدمد: | 2662-5423 2662-5415 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::1be02ab3517290bb1ff99793f0ef58d9 https://doi.org/10.1007/s41403-021-00282-3 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........1be02ab3517290bb1ff99793f0ef58d9 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 26625423 26625415 |
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