Influence of Temperatures on Creep Behavior of Pt-Al Coated Third-Generation Low-Cost Single Crystal Superalloy
文献类型：期刊论文
| 作者 | Zhang, Ge1; Tao, Xipeng2; Jafri, Syed Muhammad Abbas2; Wang, Xinguang2; Zhang, Song1; Zhang, Chunhua1; Liang, Jingjing2; Li, Jinguo2; Sun, Xiaofeng2; Zhou, Yizhou2 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 53期号:10页码:2766-2776 |
| 关键词 | Pt-Al coating high-temperature creep single crystal superalloy crack oxidation microstructure evolution |
| ISSN号 | 1002-185X |
| DOI | 10.12442/j.issn.1002-185X.20240015 |
| 通讯作者 | Tao, Xipeng(xptao19b@imr.ac.cn) |
| 英文摘要 | The influence of applied temperatures on the creep rupture life of the third-generation low-cost single crystal (SX) superalloy with Pt-Al coating was evaluated. The creep damage was observed under the conditions of 1100 degrees C/137 MPa, 1120 degrees C/137 MPa, and 1140 degrees C/137 MPa. Results show that the properties of bare superalloy outperform those of coated superalloy under all test conditions. The most significant reduction in creep life reaches 50% when the test condition is 1100 degrees C/137 MPa. At higher temperatures (1120 and 1140 degrees C), the crack propagation rate in Pt-Al coatings to SX superalloy substrate decreases, thereby reducing the degradation degree of mechanical properties. Instead of the penetration into SX substrate, tip oxidation and Al diffusion of the coating cracks cause the formation of oxides, therefore leading to the slow degradation in microstructures of the substrate beneath the coating. At 1100 degrees C, however, the microstructure of coating/SX superalloy substrate degrades due to the Al internal diffusion. This diffusion mechanism promotes the formation of harmful topologically close packed phases around 1100 degrees C. At 1120 and 1140 degrees C, the dislocation of SX superalloy substrate beneath the coating is relatively unchanged, compared to that in the inner superalloy. In contrast, the dislocation network of the substrate beneath the coating becomes sparse, and the number of superdislocations cutting into gamma ' phases increases at 1100 degrees C. |
| 资助项目 | National Key Research and Development Program of China[2017YFA0700704] ; China Postdoctoral Science Foundation[2023M733570] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001352069400007 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 资助机构 | National Key Research and Development Program of China ; China Postdoctoral Science Foundation |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tao, Xipeng |
| 作者单位 | 1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ge,Tao, Xipeng,Jafri, Syed Muhammad Abbas,et al. Influence of Temperatures on Creep Behavior of Pt-Al Coated Third-Generation Low-Cost Single Crystal Superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2024,53(10):2766-2776. |
| APA | Zhang, Ge.,Tao, Xipeng.,Jafri, Syed Muhammad Abbas.,Wang, Xinguang.,Zhang, Song.,...&Zhou, Yizhou.(2024).Influence of Temperatures on Creep Behavior of Pt-Al Coated Third-Generation Low-Cost Single Crystal Superalloy.RARE METAL MATERIALS AND ENGINEERING,53(10),2766-2776. |
| MLA | Zhang, Ge,et al."Influence of Temperatures on Creep Behavior of Pt-Al Coated Third-Generation Low-Cost Single Crystal Superalloy".RARE METAL MATERIALS AND ENGINEERING 53.10(2024):2766-2776. |
入库方式： OAI收割
来源：金属研究所
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