Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| The void nucleation mechanism within lead phase during spallation of leaded brass | |
| Yang, Y; Wang, C; Chen, XZ; Chen, KG; Hu, HB; Fu, YA | |
| 2018 | |
| Source Publication | PHILOSOPHICAL MAGAZINE
 |
| ISSN | 1478-6435 |
| Volume | 98Issue:21Pages:1975-1990 |
| Subtype | 期刊论文 |
| Abstract | The incipient spall behaviours of Cu-34%Zn-3%Pb leaded brass samples with annealed and cryogenic-treated conditions were loaded using one-stage light gas gun experiments. The effect of Pb-phase on dynamic damage nucleation in leaded brass specimens was investigated by means of optical microscopy, scanning electron microscopy and x-ray computer tomography. It was found that the voids of incipient spall were mainly nucleated in the interior of the lead (no tensile stress would be produced within lead according to the impact theory) instead of nucleated at the phase interface as expected by quasi-static damage fracture theory. A nucleation model is proposed in the present work that is the asymmetry high compression zones in the centre of the lead-phase were formed by the rarefaction wave convergence effects of matrix/quasi-spherical lead interface, which caused adiabatic temperature rise that exceeded melting point of lead due to severe plastic deformation, finally led to local melting and void nucleation. In addition, the spall strength and damage rate increased with the increase in the Pb-phase number. |
| Keyword | High-purity Copper Sweeping Detonation Polycrystalline Copper Ductile Fracture Damage Failure Metals Strength Behavior |
| DOI | 10.1080/14786435.2018.1468942 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000435124800005 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/29184 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Affiliation | 1.Yang, Y 2.Wang, C 3.Chen, XZ 4.Chen, KG 5.Hu, HB 6.Fu, YA |
| Recommended Citation GB/T 7714 | Yang, Y,Wang, C,Chen, XZ,et al. The void nucleation mechanism within lead phase during spallation of leaded brass[J]. PHILOSOPHICAL MAGAZINE,2018,98(21):1975-1990. |
| APA | Yang, Y,Wang, C,Chen, XZ,Chen, KG,Hu, HB,&Fu, YA.(2018).The void nucleation mechanism within lead phase during spallation of leaded brass.PHILOSOPHICAL MAGAZINE,98(21),1975-1990. |
| MLA | Yang, Y,et al."The void nucleation mechanism within lead phase during spallation of leaded brass".PHILOSOPHICAL MAGAZINE 98.21(2018):1975-1990. |
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| File Name/Size | DocType | Version | Access | License | ||
| The void nucleation （2140KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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