The void nucleation mechanism within lead phase during spallation of leaded brass
文献类型：期刊论文
| 作者 | Yang, Y; Wang, C; Chen, XZ; Chen, KG; Hu, HB; Fu, YA |
| 刊名 | PHILOSOPHICAL MAGAZINE
 |
| 出版日期 | 2018 |
| 卷号 | 98期号:21页码:1975-1990 |
| 关键词 | High-purity Copper Sweeping Detonation Polycrystalline Copper Ductile Fracture Damage Failure Metals Strength Behavior |
| ISSN号 | 1478-6435 |
| DOI | 10.1080/14786435.2018.1468942 |
| 文献子类 | 期刊论文 |
| 英文摘要 | 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000435124800005 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/29184]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Yang, Y 2.Wang, C 3.Chen, XZ 4.Chen, KG 5.Hu, HB 6.Fu, YA |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：上海应用物理研究所
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