The paper reports first investigations of the effect of low-temperature helium (He) plasma exposure on the India specific reduced activation ferritic martensitic (IN-RAFM) steel. Experiments are performed in the CIMPLE-PSI device, over the variation of ion-flux (∼3 × 10 22−23 m −2 s −1 ) and target temperature (316 K−830 K), for ion-fluence up to 1.6 × 10 26 m −2 . Strong morphology changes have been observed, in particular, fiber-form surface structures with nanometer-sized grain structures, pinholes, and hollow fibers. Surface enrichment of tungsten up to 2.3 at.% was measured by energy dispersive x-ray spectroscopy (EDX), which was supported by Rutherford backscattering spectrometry (RBS) measurements. This had happened because iron and chromium were preferentially sputtered out by the He ions. It is demonstrated that the porous, micrometer-sized surface inhomogeneities, produced under high ion-flux (≥8.0 × 10 22 m ...

中文翻译：

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在CIMPLE-PSI线性器件中He +通量和目标温度变化下印度RAFM的暴露

该论文首次报告了低温氦（He）等离子体暴露对印度特定还原活化铁素体马氏体（IN-RAFM）钢的影响。在CIMPLE-PSI设备上进行了实验，对离子通量（〜3×10 22−23 m -2 s -1）和目标温度（316 K–830 K）的变化进行了研究，离子通量高达1.6 ×10 26 m -2。已经观察到强烈的形态变化，特别是具有纳米级晶粒结构的纤维状表面结构，针孔和中空纤维。钨的表面富集度通过能量色散X射线光谱法（EDX）进行测量，该光谱由卢瑟福背散射光谱法（RBS）测量支持。发生这种情况是因为铁和铬优先被He离子溅出。事实证明，多孔，