The effect of secondary dendrite orientation on thickness debit effect of nickel-based single-crystal superalloy with tubular samples
文献类型：期刊论文
| 作者 | Liu, Jing1,2; Yu, Minghan1,2; Min, Shiling1,2; Zhang, Gong1; Xu, Zhengguo1; Liu, Xingang1; Wang, Li1; Dong, Jiasheng1; Lou, Langhong1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2025-05-10 |
| 卷号 | 217页码:80-92 |
| 关键词 | Superalloy Creep Secondary dendrite orientation Thickness debit effect Slip |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2024.06.056 |
| 通讯作者 | Wang, Li(wangli@imr.ac.cn) ; Dong, Jiasheng(djs@imr.ac.cn) |
| 英文摘要 | Secondary dendrite orientation and wall thickness considerably affect the stress rupture life of thin- walled samples. However, the effect of the secondary dendrite orientation on the thickness debit effect of nickel-based single-crystal superalloys has not been thoroughly investigated until now. Owing to geometrical constraints, typical sheet samples cannot reveal the mechanism responsible for the thickness debit effect in turbine blades. This study examined the effect of secondary dendrite orientation on the thickness debit effect of nickel-based single-crystal superalloys at 1100 degrees C/137 MPa in tubular samples. As the wall thickness decreased from 1.5 mm to 0.3 mm, the stress rupture life decreased from approximately 170 h to 64 h, demonstrating a noticeable thickness debit effect. Among the different secondary dendrite orientation areas, the variation in plastic deformation difference increased from 7 % (1.5 mm) to 45 % (0.5 mm) and subsequently decreased to 4 % (0.3 mm). In thinner samples, the thickness contraction and microstructure evolution were more pronounced in the [100] areas than that in the [110] and [210] areas. The theoretical calculation quantitatively indicated that for the effective stress increased, the contribution of plastic deformation (45 %) was slightly lower than that of oxidation (55 %) in 0.3 mm samples; nevertheless, plastic deformation played a prominent role in 0.5, 0.8, 1, and 1.5 mm samples and increased from 61 % (0.5 mm samples) to 85 % (1.5 mm samples). In thinner samples, the larger plastic deformation in the secondary dendrite orientation of the [100] areas and oxidation increased the effective stress, resulting in a shorter rupture life. These findings are conducive to the structural optimization and performance improvement of turbine blades. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | Science Center for Gas Turbine Project[P2021-AB-IV-0 01-0 02] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001338845500001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | Science Center for Gas Turbine Project |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Li; Dong, Jiasheng |
| 作者单位 | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jing,Yu, Minghan,Min, Shiling,et al. The effect of secondary dendrite orientation on thickness debit effect of nickel-based single-crystal superalloy with tubular samples[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,217:80-92. |
| APA | Liu, Jing.,Yu, Minghan.,Min, Shiling.,Zhang, Gong.,Xu, Zhengguo.,...&Lou, Langhong.(2025).The effect of secondary dendrite orientation on thickness debit effect of nickel-based single-crystal superalloy with tubular samples.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,217,80-92. |
| MLA | Liu, Jing,et al."The effect of secondary dendrite orientation on thickness debit effect of nickel-based single-crystal superalloy with tubular samples".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 217(2025):80-92. |
入库方式： OAI收割
来源：金属研究所
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