CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
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 PublicationPHILOSOPHICAL MAGAZINE
ISSN1478-6435
Volume98Issue:21Pages:1975-1990
Subtype期刊论文
AbstractThe 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.
KeywordHigh-purity Copper Sweeping Detonation Polycrystalline Copper Ductile Fracture Damage Failure Metals Strength Behavior
DOI10.1080/14786435.2018.1468942
Indexed BySCI
Language英语
WOS IDWOS:000435124800005
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29184
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.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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