The role of boron on a conventional nickel-based superalloy
文献类型：期刊论文
| 作者 | P. J. Zhou ; J. J. Yu ; 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 | 2008 |
| 卷号 | 491期号:1-2页码:159-163 |
| 关键词 | M951 alloy grain boundaries stress-rupture boron borides Ni3Al grain-boundary segregation vacancy formation energies environmental embrittlement solute segregation dislocation line ni3al behavior alloy polycrystalline microstructure |
| ISSN号 | 0921-5093 |
| 中文摘要 | Stress rupture tests of M951 superalloy containing various boron concentrations are performed at 1100 degrees C/40MPa. The results show that boron in the range of 0.003-0.024% is beneficial to the rupture life. Further increase of boron contents leads to the drop of rupture life. The tensile tests at 1000 degrees C indicate that, despite the increase of tensile elongation, the tensile strength at 1000 degrees C is depressed by the boron doping. These effects of boron are explained in a terms of an easy grain boundary transfer between adjacent grains. Thus, large dislocation pileups in the vicinity of grain boundary are less likely. Thereby, the propensity for intergranular crack nucleation should be reduced. Besides, a way to estimate the volume of boride is proposed. (C) 2008 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/321006/33393]  |
| 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 | P. J. Zhou,J. J. Yu,X. F. Sun,et al. The role of boron on a conventional nickel-based superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,491(1-2):159-163. |
| APA | P. J. Zhou,J. J. Yu,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2008).The role of boron on a conventional nickel-based superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,491(1-2),159-163. |
| MLA | P. J. Zhou,et al."The role of boron on a conventional nickel-based superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 491.1-2(2008):159-163. |
入库方式： OAI收割
来源：金属研究所
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