Dislocation behaviour and the formation of persistent slip bands in fatigued copper single crystals observed by high-voltage electron microscopy
作者： Teizo Tabata , Hiroshi Fujita , Masa-Aki Hiraoka , Kazushi Onishi
DOI: 10.1080/01418618308243124
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摘要: Abstract Dislocation behaviour in fatigued copper single crystals with [123] and [111] fatigue axes has been investigated dynamically by situ experiments a high-voltage electron microscope to clarify the origin of persistent slip bands (PSBs) how ladder structure is formed. From observations specimen, following points have clarified concerning development PSBs structure. (1) Only primary dislocations are activated whose dislocation walls perpendicular Burgers vector. (2) The easily cut glide on cross-slip plane. (3) disappears more quickly than vein when specimens heated inside microscope. (4) structures observed from direction plane tend arrange themselves parallel traces conjugate critical...
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