| The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures | |
| Li, W. B.1,2; Pang, J. C.2; Zhang, H.1; Li, S. X.2; Zhang, Z. F.2 | |
| Corresponding Author | Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, H.(hzhang@epm.neu.edu.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 2022-03-02 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 836Pages:11 |
| Abstract | Aero-engine turbine disk is always subjected to cyclic loading at room and elevated temperatures. Therefore, as one of the typical high-temperature materials, selective laser melted Inconel 718 superalloy was chosen to perform high-cycle fatigue tests at 25 degrees C, 450 degrees C and 650 degrees C and investigate the effect of temperature on fatigue damage mechanism. The locations of fatigue crack initiation are surface and subsurface defects at room temperature, and become subsurface and internal facets at elevated temperatures. An analyzed stress intensity factor and El-Haddad model were performed to assess the effect of defects on fatigue performance at room temperature. By means of electron back scattered diffraction, the fatigue damage mechanisms at elevated temperatures were elucidated. Based on the general relationship between fatigue and tensile strengths of metallic materials, an accurately quantitative relationship among fatigue strength and temperature was proposed. |
| Keyword | Selective laser melting Inconel 718 Elevated temperature fatigue Damage mechanism Fatigue strength prediction |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Natural Science Foun-dation of Liaoning Province |
| DOI | 10.1016/j.msea.2022.142716 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[52130002] ; Natural Science Foun-dation of Liaoning Province[20180550880] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000761748800002 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173402 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Pang, J. C.; Zhang, H.; Zhang, Z. F. |
| Affiliation | 1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, 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 | Li, W. B.,Pang, J. C.,Zhang, H.,et al. The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,836:11. |
| APA | Li, W. B.,Pang, J. C.,Zhang, H.,Li, S. X.,&Zhang, Z. F..(2022).The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,836,11. |
| MLA | Li, W. B.,et al."The high-cycle fatigue properties of selective laser melted Inconel 718 at room and elevated temperatures".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 836(2022):11. |
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