| The thin-wall debit of a typical cast polycrystalline M951 alloy | |
| Li, Qi1,2; Xie, Jun1; Yu, JinJiang1; Shu, Delong1; Hou, Guichen1; Sun, Xiaofeng1; Zhou, Yizhou1 | |
| Corresponding Author | Xie, Jun(junxie@imr.ac.cn) ; Yu, JinJiang(jjyu@imr.ac.cn) |
| 2022-02-01 | |
| Source Publication | PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
 |
| ISSN | 1002-0071 |
| Volume | 32Issue:1Pages:104-113 |
| Abstract | The effect of specimen thickness on the rupture properties of cast Ni-based polycrystal superalloy M951 was investigated in this paper. The results of the rupture tests in air under 980 degrees C/90 MPa revealed that the rupture life and elongation obviously decreased with decreasing specimen thickness. The thin-wall effect for polycrystal superalloy M951 is associated with several factors. First, the surface oxidation and internal nitridation induce the reduction in the load-bearing section, which accelerates the rupture fracture of thin specimens. Second, the combined effect of oxidation and stress at the surface grain boundary facilitates the premature initiation and propagation of the surface cracks in thin specimen. Third, the through-grain boundaries introduce by specimens machining are detrimental for rupture property. A direct comparison of rupture properties of thin-wall samples with different grain morphologies indicate that thin-wall effect can be diminished by avoiding through-grain boundary introduction. |
| Keyword | M951 Thin-wall debit Surface crack Through-grain boundary |
| Funding Organization | National Natural Science Foundation of China ; Na-tional Science and Technology Major Project ; Liaoning Provincial Natural Science Foundation of China |
| DOI | 10.1016/j.pnsc.2021.10.010 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51971214] ; National Natural Science Foundation of China[51771191] ; National Natural Science Foundation of China[51701212] ; Na-tional Science and Technology Major Project[J2019-VI-0018-0133] ; Liaoning Provincial Natural Science Foundation of China |
| WOS Research Area | Materials Science ; Science & Technology - Other Topics |
| WOS Subject | Materials Science, Multidisciplinary ; Multidisciplinary Sciences |
| WOS ID | WOS:000760773500002 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173254 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xie, Jun; Yu, JinJiang |
| Affiliation | 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, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Qi,Xie, Jun,Yu, JinJiang,et al. The thin-wall debit of a typical cast polycrystalline M951 alloy[J]. PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,2022,32(1):104-113. |
| APA | Li, Qi.,Xie, Jun.,Yu, JinJiang.,Shu, Delong.,Hou, Guichen.,...&Zhou, Yizhou.(2022).The thin-wall debit of a typical cast polycrystalline M951 alloy.PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,32(1),104-113. |
| MLA | Li, Qi,et al."The thin-wall debit of a typical cast polycrystalline M951 alloy".PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL 32.1(2022):104-113. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment