Studies of high-temperature notch fatigue property and fracture of a directional solidified Co-base superalloy
文献类型：期刊论文
| 作者 | Jiang, WH; Yao, XD; Guan, HR; Hu, ZQ |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 1998-12-01 |
| 卷号 | 27期号:6页码:340-343 |
| 关键词 | directional solidification Co-base superalloy notch fatigue property fractograph |
| ISSN号 | 1002-185X |
| 通讯作者 | Jiang, WH() |
| 英文摘要 | The notch fatigue behaviours of a directionally solidified Co - base superalloy at 700 degrees C and 900 degrees C in air have been investigated and the fracture surfaces have been observed using SEM. The results show that the alloy possesses a high notch fatigue resistance, and that the notch fatigue limits at 700 degrees C and 900 degrees C are 285 MPa and 203 MPa, respectively. The alloy exhibits low notch sensitivity(about 0.15). Ar 700 degrees C, a fatigue crack propagates along the {111} slip plane, while at 900 degrees C, under the effect of a cyclic stress and environmental oxidization, the crack grows initially along the {001} cleavage plane and then propagates with a striate made. The high notch fatigue resistance of the alloy is attributed to its peculiar microstructure and excellent static mechanical properties, especially high ductility. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000078056700006 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/107720]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang, WH |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Dept 6, Shenyang 110015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, WH,Yao, XD,Guan, HR,et al. Studies of high-temperature notch fatigue property and fracture of a directional solidified Co-base superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,1998,27(6):340-343. |
| APA | Jiang, WH,Yao, XD,Guan, HR,&Hu, ZQ.(1998).Studies of high-temperature notch fatigue property and fracture of a directional solidified Co-base superalloy.RARE METAL MATERIALS AND ENGINEERING,27(6),340-343. |
| MLA | Jiang, WH,et al."Studies of high-temperature notch fatigue property and fracture of a directional solidified Co-base superalloy".RARE METAL MATERIALS AND ENGINEERING 27.6(1998):340-343. |
入库方式： OAI收割
来源：金属研究所
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