| Microstructures of DD8 single crystal nickel base superalloy after thermo-mechanical fatigue |
| Wang, YC; Li, SX; Ai, SH; Liu, F; Zhou, L; Zhang, H
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| 通讯作者 | Wang, YC(ycwang@imr.ac.cn)
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| 2003-04-11
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| 发表期刊 | ACTA METALLURGICA SINICA
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| ISSN | 0412-1961
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| 卷号 | 39期号:4页码:337-341 |
| 摘要 | The microstructures of DD8 single crystal nickel base superalloy were observed by TEM before and after thermo-mechanical fatigue. It is found that both dislocation configurations and gamma' precipitate morphologies under in phase(IP) testing are obvious different from that under out of phase(OP) testing. Under IP testing, dense hexagonal dislocation networks exist on the gamma/gamma' interfaces normal to the stress axis, and rectangular dislocation networks exist on the gamma/gamma' interfaces parallel to the stress axis. With decreasing mechanical strain amplitude rafting of the gamma precipitates is more pronounced. Under OP testing, no dislocation network is found on the gamma/gamma' interfaces, gamma precipitates are sheared by superlattice stacking faults, and not rafted obviously. |
| 关键词 | single crystal nickel base superalloy
in phase
out of phase
thermo-mechanical fatigue
dislocation network
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS研究方向 | Metallurgy & Metallurgical Engineering
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| WOS类目 | Metallurgy & Metallurgical Engineering
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| WOS记录号 | WOS:000182921300001
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| 出版者 | SCIENCE PRESS
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/115962
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| 专题 | 中国科学院金属研究所
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| 通讯作者 | Wang, YC |
| 作者单位 | Chinese Acad Sci, Met Res Inst, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
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推荐引用方式
GB/T 7714 |
Wang, YC,Li, SX,Ai, SH,et al. Microstructures of DD8 single crystal nickel base superalloy after thermo-mechanical fatigue[J]. ACTA METALLURGICA SINICA,2003,39(4):337-341.
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| APA |
Wang, YC,Li, SX,Ai, SH,Liu, F,Zhou, L,&Zhang, H.(2003).Microstructures of DD8 single crystal nickel base superalloy after thermo-mechanical fatigue.ACTA METALLURGICA SINICA,39(4),337-341.
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| MLA |
Wang, YC,et al."Microstructures of DD8 single crystal nickel base superalloy after thermo-mechanical fatigue".ACTA METALLURGICA SINICA 39.4(2003):337-341.
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