The effects of temperature and stress on the high-cycle fatigue properties of a Ni-based wrought superalloy
文献类型：期刊论文
| 作者 | Chen, Yipeng1,2; Kong, Weiwen2; Yuan, Chao1; Liu, Shuai1; Cai, Yong2; Wang, Yongqiang1,2; Gao, Xinyu1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 172页码:17 |
| 关键词 | GH4742 High -cycle fatigue Fatigue life Fatigue failure mechanism |
| ISSN号 | 0142-1123 |
| DOI | 10.1016/j.ijfatigue.2023.107669 |
| 通讯作者 | Yuan, Chao(ychao@imr.ac.cn) |
| 英文摘要 | The high-cycle fatigue behavior of the wrought superalloy GH4742 was studied at room-temperature (RT), 650 degrees C and 750 degrees C. The fatigue strength at 107 cycles of the GH4742 alloy increases with increasing temperature, which is mainly due to the different fracture modes at different temperatures. Fatigue cracks at room temper-ature originate from the specimen surface, including surface inclusions, surface carbides, surface slip and surface crystallographic facets. At 650 degrees C and 750 degrees C, the fatigue crack initiations originate from the subsurface or in-ternal crystallographic planes under lower stress levels, while the surface defects or surface crystallographic planes originate under higher stress levels. The dislocation density of the GH4742 superalloy is low at room temperature and 650 degrees C, and the deformation mechanism is mainly governed by APBs shearing primary gamma ' and Orowan bypassing secondary and tertiary gamma '. When the temperature rises to 750 degrees C, the deformation mechanism is mainly governed by stacking faults shearing primary, secondary and tertiary gamma '. Furthermore, antiphase boundaries (APBs) shearing primary gamma ' and Orowan bypassing secondary and tertiary gamma ' occur. |
| 资助项目 | National Science and Technology Major Project[2017 -VI -0018- 0090] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000982156000001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Science and Technology Major Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177483]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yuan, Chao |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yipeng,Kong, Weiwen,Yuan, Chao,et al. The effects of temperature and stress on the high-cycle fatigue properties of a Ni-based wrought superalloy[J]. INTERNATIONAL JOURNAL OF FATIGUE,2023,172:17. |
| APA | Chen, Yipeng.,Kong, Weiwen.,Yuan, Chao.,Liu, Shuai.,Cai, Yong.,...&Gao, Xinyu.(2023).The effects of temperature and stress on the high-cycle fatigue properties of a Ni-based wrought superalloy.INTERNATIONAL JOURNAL OF FATIGUE,172,17. |
| MLA | Chen, Yipeng,et al."The effects of temperature and stress on the high-cycle fatigue properties of a Ni-based wrought superalloy".INTERNATIONAL JOURNAL OF FATIGUE 172(2023):17. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。