Preparation and mechanical properties of highly densified nanocrystalline Al
文献类型：期刊论文
| 作者 | Sun, XK; Cong, HT; Sun, M; Yang, MC |
| 刊名 | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
 |
| 出版日期 | 2000-03-01 |
| 卷号 | 31期号:3A页码:1017-1024 |
| ISSN号 | 1073-5623 |
| 通讯作者 | Sun, XK() |
| 英文摘要 | The preparation of highly densified nanocrystalline (NC) Al was conducted in three steps. First, the NC Al powder was synthesized by an active H-2 plasma evaporation method. Then, the NC Al powder was compacted at room temperature into disk-shaped samples with a 25-mm diameter and 2-mm thickness and was sintered at 620 degrees C or 635 degrees C (sintered NC Al), The sintering does not result in grain growth. Finally the sintered NC Al was rolled at room temperature into sheet samples with a 1-mm thickness and 99 pet relative density (cold-deformed NC Al). The microhardnesses and tensile properties of the sintered NC Al and cold-deformed NC Al were tested at room temperature. The results show that their strengths are basically the same, and the yield strengths (sigma(0.2)) and tensile strengths (sigma(b)) are 12 to 16 and 5 to 6 times those of annealed coarse-grained Al, respectively, but the elongation to failure of the cold-deformed NC Al is up to 8 pct, which is 2 times that of the sintered NC Al and higher than that of cold-deformed, coarse-grained Al by 30 pct. The failure features of the sintered NC Al and cold-deformed NC Al belong to typical plastic fracture with ductile dimples, and the mechanism of failure is transgranular shear fracture. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000086107100022 |
| 出版者 | MINERALS METALS MATERIALS SOC |
| 源URL | [http://ir.imr.ac.cn/handle/321006/110797]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, XK |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Sci, State Key Lab RSA, Shenyang 110015, Peoples R China 2.PR China Med Univ, Dept Phys, Shenyang 110001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, XK,Cong, HT,Sun, M,et al. Preparation and mechanical properties of highly densified nanocrystalline Al[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2000,31(3A):1017-1024. |
| APA | Sun, XK,Cong, HT,Sun, M,&Yang, MC.(2000).Preparation and mechanical properties of highly densified nanocrystalline Al.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,31(3A),1017-1024. |
| MLA | Sun, XK,et al."Preparation and mechanical properties of highly densified nanocrystalline Al".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 31.3A(2000):1017-1024. |
入库方式： OAI收割
来源：金属研究所
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