| Thermal mechanical fatigue cracking of a bladed disk in a turbo engine | |
| Zhang, H. Y.1; Zhu, H.2; Rong, Y. H.2; Liu, C. B.2; Dong, C.1; Fu, C. M.1; Qu, S.1; Zhang, Z. F.1 | |
| 通讯作者 | Qu, S.(squ@imr.ac.cn) |
| 2024-11-01 | |
| 发表期刊 | ENGINEERING FAILURE ANALYSIS
 |
| ISSN | 1350-6307 |
| 卷号 | 165页码:12 |
| 摘要 | After 1221 h of bench testing, linear fluorescent displays were observed on the transition arcs between the blade and the edge plate. Macroscopic and microscopic inspections revealed fatigue cracks originating from cracked grain boundaries on the surface. Metallographic examinations indicated severe oxidation of the crack flank and blunting tip. Finite element thermal stress analysis aligns with the crack distribution. The nature of the cracking is identified as thermal mechanical fatigue, and the elevated temperature gradient induced by the exhaust gas purification device is the main promoter for cracking. Comparative analysis suggests that the root cause lies in the low thermal impact resistance of the material, ultimately resulting in reduced thermal mechanical fatigue resistance. Corresponding remedial methods are proposed to enhance service life and safety. |
| 关键词 | Gas turbine Black GH710 Thermal mechanical fatigue |
| DOI | 10.1016/j.engfailanal.2024.108743 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Materials Science |
| WOS类目 | Engineering, Mechanical ; Materials Science, Characterization & Testing |
| WOS记录号 | WOS:001291961400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/188983 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Qu, S. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Changzhou Lanxiang Machinery Works, Changzhou 213022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, H. Y.,Zhu, H.,Rong, Y. H.,et al. Thermal mechanical fatigue cracking of a bladed disk in a turbo engine[J]. ENGINEERING FAILURE ANALYSIS,2024,165:12. |
| APA | Zhang, H. Y..,Zhu, H..,Rong, Y. H..,Liu, C. B..,Dong, C..,...&Zhang, Z. F..(2024).Thermal mechanical fatigue cracking of a bladed disk in a turbo engine.ENGINEERING FAILURE ANALYSIS,165,12. |
| MLA | Zhang, H. Y.,et al."Thermal mechanical fatigue cracking of a bladed disk in a turbo engine".ENGINEERING FAILURE ANALYSIS 165(2024):12. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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