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Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy
文献类型：期刊论文
| 作者 | J. L. Liu ; J. J. Yu ; T. Jin ; X. F. Sun ; H. R. Guan ; Z. Q. Hu |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2011 |
| 卷号 | 21期号:7页码:1518-1523 |
| 关键词 | single crystal superalloy tensile behavior yield strength microstructure nickel-based superalloy resolved shear-stress base superalloy dislocation microstructure gamma'-phase flow-stress dependence asymmetry direction alloy |
| ISSN号 | 1003-6326 |
| 中文摘要 | Tensile properties of a Re-containing single crystal superalloy were determined within the temperature range from 20 to 1 100 degrees C with a constant strain rate of 1.67x10(-4) s(-1). From room temperature to 600 degrees C, the yield strength increases slightly with increasing temperature. The yield strength decreases to a minimum at 760 degrees C, while a maximum is reached dramatically at 800 degrees C. The elongation and area reduction decrease gradually from room temperature to 800 degrees C. Above 800 degrees C, the yield strength decreases significantly with increasing temperature. The gamma' phase is sheared by antiphase boundary (APB) below 600 degrees C, while elongated SSF (superlattice stacking fault) is left in gamma' as debris. At 760 degrees C the gamma' phase is sheared by a/3 < 112 > superpartial dislocation, which causes decrease of yield strength due to low energy of SSF. Above 800 degrees C, dislocations overcome gamma' through by-passing mechanism. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30535]  |
| 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 | J. L. Liu,J. J. Yu,T. Jin,et al. Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy[J]. Transactions of Nonferrous Metals Society of China,2011,21(7):1518-1523. |
| APA | J. L. Liu,J. J. Yu,T. Jin,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2011).Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy.Transactions of Nonferrous Metals Society of China,21(7),1518-1523. |
| MLA | J. L. Liu,et al."Influence of temperature on tensile behavior and deformation mechanism of Re-containing single crystal superalloy".Transactions of Nonferrous Metals Society of China 21.7(2011):1518-1523. |
入库方式： OAI收割
来源：金属研究所
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