Static and cyclic creep behaviour of SiC whisker reinforced aluminium composite
文献类型：期刊论文
| 作者 | S. C. Tjong ; Z. Y. Ma ; Z. G. Wang |
| 刊名 | Materials Science and Technology
 |
| 出版日期 | 1999 |
| 卷号 | 15期号:6页码:666-672 |
| 关键词 | high-temperature creep matrix composites al composite stress alloy microstructure rupture |
| ISSN号 | 0267-0836 |
| 中文摘要 | Static and cyclic creep tests were carried out in tension at 573-673 K on a 20 vol.-%SiC whisker reinforced aluminium (Al/SiCw) composite. The Al/SiCw composite exhibited an appaient str ess exponent of 18.1-19.0 at 573-673 K and an apparent activation energy of 325 kJ mol(-1) for static creep, whereas an apparent stress exponent of 19.6 at 623 K and an apparent activation energy of 376 kJ mol(-1) were observed for cyclic creep. A cyclic creep retardation (CCR) behaviour was observed for the Al/SiCw composite. The steady state creep rate for cyclic creep was three orders of magnitude lower than that for. static creep. Furthermore, the steady state creep I rates of the composite tended to clear ease continuously with increasing percentage unloading amount. The static creep data of the Al/SiCw coinposite were rationalised by the substructure invariant model with a true stress exponent of 8 together with a threshold stress. The CCR behaviour can be explained by the storage of anelastic strain delaying non-recoverable creep during the onload cycles. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37511]  |
| 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 | S. C. Tjong,Z. Y. Ma,Z. G. Wang. Static and cyclic creep behaviour of SiC whisker reinforced aluminium composite[J]. Materials Science and Technology,1999,15(6):666-672. |
| APA | S. C. Tjong,Z. Y. Ma,&Z. G. Wang.(1999).Static and cyclic creep behaviour of SiC whisker reinforced aluminium composite.Materials Science and Technology,15(6),666-672. |
| MLA | S. C. Tjong,et al."Static and cyclic creep behaviour of SiC whisker reinforced aluminium composite".Materials Science and Technology 15.6(1999):666-672. |
入库方式： OAI收割
来源：金属研究所
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