| Microstructure characteristics of as-surface nanocrystallized 1420 aluminum alloy by high-energy shot peening | |
| Hu, LQ; Wang, K; Liu, G; Xu, BS | |
| Corresponding Author | Hu, LQ(hlqty@126.com) |
| 2005-06-01 | |
| Source Publication | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| ISSN | 1003-6326 |
| Volume | 15Issue:3Pages:615-618 |
| Abstract | A nanostructured surface layer was fabricated on 1420 aluminum alloy by high-energy shot peening. Microstructures were characterized by X-ray diffractometer(XRD), transmission electron microscope(TEM) and high-resolution electron microscope ( HRTEM), and microhardness measurement was conducted along the depth from top surface layer to matrix of the sample peened for 30 min. The results show that a nanocrystalline layer about 20 mu m in thickness is formed on the surface of the sample after high-energy shot peening, in which the grain size is changed from about 20 nm to 100 nm. In the surface layer of 20 - 50 mu m in depth, the microstructure consists of sub-micron grains. The surface nanocrystallization is accomplished by dislocation slip. The microhardness of the top surface nanostructured layer is enhanced obviously after high-energy shot peening(HESP) compared with that of the coarse-grained matrix. |
| Keyword | 1420 alloy aluminum alloy high-energy shot peening surface nanocrystallization microstructure microhardness |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000230449600025 |
| Publisher | ALLERTON PRESS INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/82551 |
| Corresponding Author | Hu, LQ |
| Affiliation | 1.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Hu, LQ,Wang, K,Liu, G,et al. Microstructure characteristics of as-surface nanocrystallized 1420 aluminum alloy by high-energy shot peening[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2005,15(3):615-618. |
| APA | Hu, LQ,Wang, K,Liu, G,&Xu, BS.(2005).Microstructure characteristics of as-surface nanocrystallized 1420 aluminum alloy by high-energy shot peening.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,15(3),615-618. |
| MLA | Hu, LQ,et al."Microstructure characteristics of as-surface nanocrystallized 1420 aluminum alloy by high-energy shot peening".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 15.3(2005):615-618. |
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