کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5423622 | 1395796 | 2009 | 6 صفحه PDF | دانلود رایگان |

The initial stages of surface oxidation of Fe-17Cr (ferritic stainless steel) were investigated at 323Â K by X-ray photoelectron spectroscopy (XPS) and inelastic electron background analysis. The results indicated the formation of a mixed iron-chromium oxide layer upon O2 exposure and the formation of a thin chromium oxyhydroxide layer upon H2O exposure. The oxidation of Fe did not occur in the latter case. Moreover, it was found that pre-exposing the Fe-17Cr surface to H2O significantly hinders subsequent oxidation by O2, thus providing a way to control the formation of nanoscale oxides on stainless steel materials. It was concluded that the formation of strongly bound hydroxyl species together with adsorbate-induced segregation of Cr severely limits the reaction between O2/H2O and Fe from the alloy.
Journal: Surface Science - Volume 603, Issue 19, 1 October 2009, Pages 3005-3010