Effects of the phase interface on spallation damage nucleation and evolution in multiphase alloy
Yang, Y; Wang, C; Chen, XZ; Hu, HB; Chen, KG; Fu, YN
2018
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
卷号740页码:321-329
文章类型期刊论文
摘要The spall behaviors of Cu-34%Zn-3%Pb leaded brass samples with annealing and cryogenic treating conditions were dynamic loaded using one-stage light gas gun experiments under similar to 1.515 GPa shock pressure. The effects of alpha/beta phase interface and Pb/matrix phase interface on dynamic damage nucleation, growth, and coalescence in leaded brass specimens were investigated by multidimensional testing techniques. Experiment results showed that voids of incipient spall were mainly nucleated in the interior of the Pb-phases with signs of melting, and a small number of voids were nucleated in alpha-phase, and both are not nucleated at the interface which contradicts the damage fracture theory under quasi-static loading. Due to the effect of reflection and transmission of shock wave at the phase interface, when the shock wave propagates from alpha-phase with higher impedance to Pb-phase or beta-phase with lower impedance, a tensile pulse will be formed within alpha-phase. If the tensile pulse has sufficient amplitude voids would be nucleated in alpha-phase. On the other hand, it is considered that the asymmetry high compression zones in the center of the lead-phase with low impedance were formed by the shock wave convergence effects of matrix/lead quasi-spherical interface, which caused adiabatic temperature rise exceeded melting point of lead due to severe plastic deformation, and finally led to local melting and void nucleation in the center of the lead-phase rather than the tensile stress. (C) 2018 Elsevier B.V. All rights reserved.
关键词High-purity Copper Sweeping Detonation Behavior Failure Metals Cu
DOI10.1016/j.jallcom.2018.01.031
收录类别SCI
语种英语
WOS记录号WOS:000425494200039
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28987
专题中科院上海应用物理研究所2011-2018年
作者单位1.Yang, Y
2.Wang, C
3.Chen, XZ
4.Hu, HB
5.Chen, KG
6.Fu, YN
推荐引用方式
GB/T 7714
Yang, Y,Wang, C,Chen, XZ,et al. Effects of the phase interface on spallation damage nucleation and evolution in multiphase alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,740:321-329.
APA Yang, Y,Wang, C,Chen, XZ,Hu, HB,Chen, KG,&Fu, YN.(2018).Effects of the phase interface on spallation damage nucleation and evolution in multiphase alloy.JOURNAL OF ALLOYS AND COMPOUNDS,740,321-329.
MLA Yang, Y,et al."Effects of the phase interface on spallation damage nucleation and evolution in multiphase alloy".JOURNAL OF ALLOYS AND COMPOUNDS 740(2018):321-329.
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