The effect of heat treatment on tensile properties of the cold-compacted nano crystalline Al
文献类型：期刊论文
| 作者 | X. K. Sun ; H. T. Cong ; M. Sun ; M. C. Yang |
| 刊名 | Nanostructured Materials
 |
| 出版日期 | 1999 |
| 卷号 | 11期号:7页码:917-923 |
| 关键词 | nanocrystalline aluminum mechanical-properties melting behavior grain-size palladium |
| ISSN号 | 0965-9773 |
| 中文摘要 | The present work studied the effect of heat treatment on tensile properties of bulk nanocrystalline Al (nano-Al) cold-compacted from nano-Al powder. The nano-Al powder synthesized by the active H plasma evaporation was compacted under 1.42 GPa pressure at room temperature into disks with 25 mm diameter and 2 mm thickness. The cold-compacted disks were heat-treated at temperature range from 540 degrees C to 635 degrees C, then machined into the tensile specimens with 25 mm total length. The results indicated that the grain size of the cold-compacted nano-Al heat-heated at 635 degrees C is basically consistent with the primary powder. The tensile specimens heat-treated at temperatures lower than 600 degrees C are broken prematurely in the elastic deformation region during the tensile test process with a brittle intergranular fracture. The specimens heat-treated at temperatures higher than 600 degrees C give the complete stress-strain curves, the yield strengths sigma(0.2) and tensile strengths sigma(b) are 12-16 times and 5-6 times those of annealed coarse-grained Al respectively, the elongations-to-failure are all 4%, and the mechanism of failure is transgranular shear fracture with a ductile dimples fracture. (C) 1999 Acta Metallurgica Inc. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37497]  |
| 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 | X. K. Sun,H. T. Cong,M. Sun,et al. The effect of heat treatment on tensile properties of the cold-compacted nano crystalline Al[J]. Nanostructured Materials,1999,11(7):917-923. |
| APA | X. K. Sun,H. T. Cong,M. Sun,&M. C. Yang.(1999).The effect of heat treatment on tensile properties of the cold-compacted nano crystalline Al.Nanostructured Materials,11(7),917-923. |
| MLA | X. K. Sun,et al."The effect of heat treatment on tensile properties of the cold-compacted nano crystalline Al".Nanostructured Materials 11.7(1999):917-923. |
入库方式： OAI收割
来源：金属研究所
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