What types of grain boundaries can be passed through by persistent slip bands?
What types of grain boundaries can be passed through by persistent slip bands? Z.F. Zhang Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, People’s Republic of China, and IFW Dresden, Institute for Metallic Materials, P. O. Box 27 00 16, D-01171, Dresden, Germany Z.G. Wang Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, People’s Republic of China J. Eckert IFW Dresden, Institute for Metallic Materials, P. O. Box 27 00 16, D-01171, Dresden, Germany Three typical interactions of persistent slip bands (PSBs) with different types of grain boundaries (GBs) were investigated and analyzed in fatigued copper crystals. The results show that PSBs cannot transfer through all types of large-angle GBs, regardless of their orientation with respect to the stress axis. Secondary slip was often observed near the GBs, leading to strain incompatibi
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