Jian Zhang , Zhepeng Wang , Jin Huang , Zhiguo Li , Ruizhi Zhang , Guoqiang Luo , Qiang Shen
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引用次数: 0
Abstract
This study investigated the dynamic spallation behavior of M42 steel within the strain rate range of 105 to 106 s−1, focusing on the effects of strain rate on its mechanical properties, such as spall strength. The spallation and deformation mechanisms of M42 steel under high strain rates were revealed. The results show a positive correlation between the spall strength of M42 steel and strain rate within the strain rate range of 1.75–9.08 × 105 s−1, indicating stable strain rate sensitivity. The stress concentration at the carbide-matrix interface was identified as the primary site for crack initiation. The hindrance of dislocation movement by carbides plays a crucial role in the failure mechanisms of M42 steel. This study also showed that the deformation mechanism of M42 steel is a combination of slip and twinning.
期刊介绍：
Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.
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