Orientation and temperature dependence of yielding and deformation behavior of a nickel-base single crystal superalloy
文献类型：期刊论文
| 作者 | L. N. Wang ; Y. Liu ; J. J. Yu ; Y. Xu ; X. F. Sun ; H. R. Guan ; Z. Q. Hu |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2009 |
| 卷号 | 505期号:1-2页码:144-150 |
| 关键词 | Single crystal superalloy Yield strength Dislocations gamma ' Precipitate resolved shear-stress mechanical-properties volume fraction anisotropy direction rene-n4 alloy ni3al slip |
| ISSN号 | 0921-5093 |
| 中文摘要 | Single crystal nickel-base superalloy SRR99 with orientation near < 001 >, < 011 > and < 111 > were tension tested at the temperature range from 20 to 900 degrees C. The experimental results showed that yielding strength of SRR99 alloy was anisotropic at all tested temperatures. The deformation mechanism was characterized by the matrix dislocation propagating on octahedral slip systems and shearing of gamma' particles by dislocation pairs, loops and superlattice stacking faults. Meanwhile, the cross-slip of screw dislocations within gamma' was thought to account for the tensile anisotropy. Fracture behavior was investigated by optical microscopy (CM) and scanning electron microscopy (SEM). It is of interest to note that the fracture surfaces of the three orientated samples tested at intermediate temperature indicate shearing rupture characteristic along {111} crystal plane. (C) 2009 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32363]  |
| 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 | L. N. Wang,Y. Liu,J. J. Yu,et al. Orientation and temperature dependence of yielding and deformation behavior of a nickel-base single crystal superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,505(1-2):144-150. |
| APA | L. N. Wang.,Y. Liu.,J. J. Yu.,Y. Xu.,X. F. Sun.,...&Z. Q. Hu.(2009).Orientation and temperature dependence of yielding and deformation behavior of a nickel-base single crystal superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,505(1-2),144-150. |
| MLA | L. N. Wang,et al."Orientation and temperature dependence of yielding and deformation behavior of a nickel-base single crystal superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 505.1-2(2009):144-150. |
入库方式： OAI收割
来源：金属研究所
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