Evolution of micro-pores in a single crystal nickel-based superalloy during 980 °C creep
文献类型：期刊论文
| 作者 | He Yufeng; Wang Shaogang; Shen Jian; Wang Dong; Lu Yuzhang; Lou Langhong; Zhang Jian |
| 刊名 | ACTA METALLURGICA SINICA(ENGLISH LETTERS)
 |
| 出版日期 | 2022 |
| 卷号 | 35期号:8页码:1397-1406 |
| 关键词 | Single crystal superalloy Creep damage Micro-pore evolution X-ray tomography |
| ISSN号 | 1006-7191 |
| 英文摘要 | The evolution of micro-pores in a single crystal nickel-based superalloy during creep at 980 °C/220 MPa was investigated by X-ray computed tomography. Time-dependent ex-situ 3D information including the number, volume fraction, distribution and morphology of micro-pores was analyzed. The results reveal that the significant formation and growth of micro-pores occur at the end of secondary/beginning of tertiary creep stage. The irregular large pores as well as high density pores located at strain concentration region are the major detrimental factors facilitating the creep damage. Creep failure is resulted from the connection of surface cracks induced by oxidation, and the internal cracks generated from growth and merging of micro-pores. |
| 语种 | 英语 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/179637]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | He Yufeng,Wang Shaogang,Shen Jian,et al. Evolution of micro-pores in a single crystal nickel-based superalloy during 980 °C creep[J]. ACTA METALLURGICA SINICA(ENGLISH LETTERS),2022,35(8):1397-1406. |
| APA | He Yufeng.,Wang Shaogang.,Shen Jian.,Wang Dong.,Lu Yuzhang.,...&Zhang Jian.(2022).Evolution of micro-pores in a single crystal nickel-based superalloy during 980 °C creep.ACTA METALLURGICA SINICA(ENGLISH LETTERS),35(8),1397-1406. |
| MLA | He Yufeng,et al."Evolution of micro-pores in a single crystal nickel-based superalloy during 980 °C creep".ACTA METALLURGICA SINICA(ENGLISH LETTERS) 35.8(2022):1397-1406. |
入库方式： OAI收割
来源：金属研究所
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