Neutron Diffraction Measurements of a Thermally Fatigued Single Crystal Superalloy
文献类型：期刊论文
| 作者 | G. A. Sun ; B. Chen ; E. D. Wu ; J. C. Li ; T. Pirling ; D. Hughes |
| 刊名 | Chinese Physics Letters
 |
| 出版日期 | 2009 |
| 卷号 | 26期号:8 |
| 关键词 | nickel-base superalloy x-ray-diffraction lattice mismatch temperature-dependence scattering experiments internal-stress behavior profiles srr-99 cmsx-4 |
| ISSN号 | 0256-307X |
| 中文摘要 | The thermally fatigued single crystal superalloy DZ125L is investigated by neutron diffraction measurements. The measurements, made using the phi angle oscillating method, provide more detailed and reliable data than those with the phi angle fixed. Diffraction studies show that the influence of thermal fatigue on the lattice parameters of the alloy is very limited. The stress analysis reveals that triaxial elastic hydrostatic stress plays a major role during thermal fatigue. The magnitude of the macrostress increases with the fatigue cycles, with the stress of the gamma phase increasing more significantly than that of the gamma' phase, and becoming fragile after many cycles. The changes in the microstrain are dependent on the reflection planes. The microstrains at the center of the sample are released by the thermal fatigue in comparison with those at the outlying locations, which has been attributed to the advance of the dislocation slips. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32301]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | G. A. Sun,B. Chen,E. D. Wu,et al. Neutron Diffraction Measurements of a Thermally Fatigued Single Crystal Superalloy[J]. Chinese Physics Letters,2009,26(8). |
| APA | G. A. Sun,B. Chen,E. D. Wu,J. C. Li,T. Pirling,&D. Hughes.(2009).Neutron Diffraction Measurements of a Thermally Fatigued Single Crystal Superalloy.Chinese Physics Letters,26(8). |
| MLA | G. A. Sun,et al."Neutron Diffraction Measurements of a Thermally Fatigued Single Crystal Superalloy".Chinese Physics Letters 26.8(2009). |
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。