Knowledge Management System of Institue of Mechanics, CAS
| Embryo-damage induced nucleation of microcracks in an aluminum-alloy under impact loading | |
Han WS(韩闻生) ; Bai YL(白以龙); HAN, WS (reprint author), CHINESE ACAD SCI, INST MECH, LNM, BEIJING 100080, PEOPLES R CHINA.
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| Source Publication | Acta Metallurgica et Materialia
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| 1995 | |
| Volume | 43Issue:6Pages:2157-2162 |
| ISSN | 0956-7151 |
| Abstract | The nucleation of microdamage under dynamic loading was investigated through planar impact experiments accomplished with a light gas gun. The microscopic observation of recovered and sectioned specimens showed that microcracks were nucleated only by cracking of brittle particles inside material. However, for comparison the in situ static tensile tests on the same material conducted with a scanning electron microscope showed that the microcracks were nucleated by many forms those were fracture of ductile matrix, debonding particles from matrix and cracking of brittle particles. The quantitative metallographic observations of the specimens subjected to impact loading showed that most of the cracked particles were situated on grain boundaries of the aluminium matrix. These facts suggested the concept of critical size and incubation time of submicroscopic cavities in the dynamic case and the mechanism of embryo-damage induced nucleation by fracture of brittle particles in the aluminium alloy under impact loading was proposed. |
| DOI | 10.1016/0956-7151(94)00435-8 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:A1995QZ88200004 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/39248 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | HAN, WS (reprint author), CHINESE ACAD SCI, INST MECH, LNM, BEIJING 100080, PEOPLES R CHINA. |
| Recommended Citation GB/T 7714 | Han WS,Bai YL,HAN, WS . Embryo-damage induced nucleation of microcracks in an aluminum-alloy under impact loading[J]. Acta Metallurgica et Materialia,1995,43,6,:2157-2162. |
| APA | 韩闻生,白以龙,&HAN, WS .(1995).Embryo-damage induced nucleation of microcracks in an aluminum-alloy under impact loading.Acta Metallurgica et Materialia,43(6),2157-2162. |
| MLA | 韩闻生,et al."Embryo-damage induced nucleation of microcracks in an aluminum-alloy under impact loading".Acta Metallurgica et Materialia 43.6(1995):2157-2162. |
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