Surface Modification by Nitrogen Plasma Immersion Ion Implantation on Austenitic AISI 304 Stainless Steel

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• 作者：Miguel CASTRO-COLIN^a ; ^{miguel.castro-colin@bruker.com" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; William DURRER^b ; Jorge A. LÓ ; PEZ^b ; ^{jorgelopez@utep.edu" class="auth_mail" title="E-mail the corresponding author} ; Enrique RAMIREZ-HOMS^b
• 关键词：PIII technology ; AISI 304 ; XPS ; AES ; surface modification
• 刊名：Journal of Iron and Steel Research, International
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：23
• 期：4
• 页码：380-384
• 全文大小：391 K

文摘

Surfaces of AISI 304 austenitic stainless steel plates nitrided by plasma immersion ion implantation (PIII) technology were studied by means of Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS) to determine the effect of the nitriding process on the surface and subjacent layers. Elemental compositions obtained by AES and XPS at varying depths indicate that the saturation of N is relatively constant as a function of depth, indicating the reliability of PIII technology for subsurface saturation. It is concluded that the concentrations of both Cr and O increase with depth, the subjacent oxide is driven by the Ar⁺ sputtering process used to access the lower layers, and then N is bound to Cr.