Tensile orientation dependence of surface-roughness evolution in cyclically deformed Fe–30%Cr alloy single crystals

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• 作者：Yamasaki ; Takashi ; Kaneko ; Yoshihisa ; Miyamoto ; Hiroyuki ; Hashimoto ; Satoshi ; Mimaki ; Takuro
• 关键词：Cyclic deformation ; Ferritic stainless steel ; Single crystal ; Extrusion ; PSB
• 刊名：Materials Science and Engineering ; A
• 出版年：2001
• 期刊代码：61_09215093
• 类别：ms
• 出版时间：December, 2001
• 卷：319-321
• 期：Complete
• 页码：569-573
• 文件大小：225 K

摘要

In order to investigate orientation dependence of surface roughness evolution, cyclic deformation tests have been carried out in Fe–30%Cr alloy single crystals having the tensile axes of [233], [122], [011] and [001]. Formation of persistent slip bands (PSBs) characterized by the surface roughness was observed in all the orientations. Atomic force microscope (AFM) observations revealed that the maximum heights of the PSB extrusions in the single-slip-oriented specimens ([233] and [122]) were larger than those of the [011] and [001] specimens by a factor of 7.5 and 15, respectively.