| Influence of Ta plus Al on the microstructure evolution of two Ru-containing Ni-based single crystal superalloys deposited with γ′ plus β NiAl coating at extremely high temperature | |
| Ge, M. T.1,2; Li, Y. M.2; Tan, Z. H.2; Tao, X. P.2; Yang, Y. H.2; Liu, J. D.2; Liu, J. L.2; Zou, M. K.2; Zhang, C. H.1; Zhang, S.1; Wang, X. G.2; Li, J. G.2; Zhou, Y. Z.2; Sun, X. F.2 | |
| Corresponding Author | Yang, Y. H.(yhyang@imr.ac.cn) ; Zhang, C. H.(zhangch5858@126.com) ; Wang, X. G.(xgwang11b@imr.ac.cn) |
| 2023-11-15 | |
| Source Publication | SURFACE & COATINGS TECHNOLOGY
 |
| ISSN | 0257-8972 |
| Volume | 472Pages:11 |
| Abstract | The effects of gamma ' forming elements Ta + Al on the microstructural evolution of two Ru-containing single crystal (SX) superalloys deposited with gamma ' + beta NiAl coatings were investigated after thermal exposure at 1140 degrees C. TCP precipitation, recrystallization, and elemental interdiffusion were particularly investigated to illustrate the influence of Ta + Al on the compatibility between the coating and substrate. After exposure at 1140 degrees C, two distinct zones were formed under the IDZ, where the SRZ in the higher Ta + Al alloy contained a large number of rod-like and needle-like TCP phases. The other was the SDZ in the lower Ta + Al alloy, which possessed fewer and smaller granular TCP phases. Noteworthily, this discrepancy was attributed to the enhanced tendency of recrystallization in alloy with higher Ta + Al, since higher Ta + Al would result in more negative misfit of gamma/gamma ' and lower Al partitioning in gamma phase, which provided more driving force for recrystallization. Meanwhile, the elemental distribution in the diffusion zone of the alloy with higher Ta + Al was more heterogeneous, and even the Ru-Al phase was observed in the coating. As the thermal exposure time prolonged, the thickness of the SRZ exceeded that of the SDZ, which significantly reduced the effective load-bearing area of alloy with higher Ta + Al. It could be summarized that a worse compatibility between the coating and the substrate would be introduced with the increase of Ta + Al in the substrate. This study provided valuable insights into the design of coatings and alloy compositions, thereby facilitating the development and application of advanced Ru-containing SX superalloys as well as their corresponding coatings. |
| Keyword | Ru-containing SX superalloys NiAl coating Microstructural evolution Recrystallization Secondary reaction zone (SRZ) Ta plus Al |
| Funding Organization | National Key Research and Development Program of China ; National Science and Technology Major Project ; Excellent Youth Foundation of Liaoning Province ; Middle-aged and Youth Talents in Scientific and Technological Innovation Project of Shenyang ; Youth Innovation Promotion Association of the Chinese Academy of Sciences |
| DOI | 10.1016/j.surfcoat.2023.129893 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2017YFA0700704] ; National Science and Technology Major Project[2017-VI -0002-0072] ; Excellent Youth Foundation of Liaoning Province[2021-YQ-02] ; Middle-aged and Youth Talents in Scientific and Technological Innovation Project of Shenyang[RC220440] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:001079718000001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/179389 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Y. H.; Zhang, C. H.; Wang, X. G. |
| Affiliation | 1.Shenyang Univ Technol, Sch Mat Sci & Engn, 111 Shenliao Rd, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Ge, M. T.,Li, Y. M.,Tan, Z. H.,et al. Influence of Ta plus Al on the microstructure evolution of two Ru-containing Ni-based single crystal superalloys deposited with γ′ plus β NiAl coating at extremely high temperature[J]. SURFACE & COATINGS TECHNOLOGY,2023,472:11. |
| APA | Ge, M. T..,Li, Y. M..,Tan, Z. H..,Tao, X. P..,Yang, Y. H..,...&Sun, X. F..(2023).Influence of Ta plus Al on the microstructure evolution of two Ru-containing Ni-based single crystal superalloys deposited with γ′ plus β NiAl coating at extremely high temperature.SURFACE & COATINGS TECHNOLOGY,472,11. |
| MLA | Ge, M. T.,et al."Influence of Ta plus Al on the microstructure evolution of two Ru-containing Ni-based single crystal superalloys deposited with γ′ plus β NiAl coating at extremely high temperature".SURFACE & COATINGS TECHNOLOGY 472(2023):11. |
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