Inhomogeneities of shock‐wave deformation in Fe‐32 wt. % Ni‐0.035 wt. % C alloy
作者:
N. N. Thadhani,
M. A. Meyers,
D. C. Erlich,
期刊:
Journal of Applied Physics
(AIP Available online 1985)
卷期:
Volume 58,
issue 7
页码: 2791-2794
ISSN:0021-8979
年代: 1985
DOI:10.1063/1.335875
出版商: AIP
数据来源: AIP
摘要:
Low‐pressure plane impact experiments performed on Fe‐32 wt. % Ni‐0.035 wt. % C alloy revealed, after recovery, markings which are attributed to shock‐induced inhomogeneities. Shear of the material does not occur homogeneously, but in preferential planar regions. These regions are made visible by a martensitic transformation [fcc (austenite)→bcc (martensite)] produced by the tensile pulses generated by the reflection of the compressive shock wave at a free surface. The bands with higher plastic deformation served as preferential nucleation sites for martensitic transformation. The formation of these bands is attributed to inhomogeneous yielding due to work softening of the material during tensile loading.
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