کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1230623 1495240 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Infrared nanosecond pulsed laser irradiation of stainless steel: Micro iron-oxide zones generation
ترجمه فارسی عنوان
اشعه لیزر نانوذرات مادون قرمز از فولاد ضد زنگ: تولید ناخالصی های آهن زئولیت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Periodic patterns of different oxides zones were generated by IR laser irradiation.
• The films generated were attached to the metal by laser irradiation.
• After laser irradiation an elemental redistribution for each oxide zone was observed.

Nanosecond-pulsed, infrared (1064 nm) laser irradiation was used to create periodic metal oxide coatings on the surface of two samples of commercial stainless steel at ambient conditions. A pattern of four different metal oxide zones was created using a galvanometer scanning head and a focused laser beam over each sample. This pattern is related to traverse direction of the laser beam scanning. Energy-dispersive X-ray spectroscopy (EDS) was used to find the elemental composition and Raman spectroscopy to characterize each oxide zone. Pulsed laser irradiation modified the composition of the stainless steel samples, affecting the concentration of the main components within each heat affected zone. The Raman spectra of the generated oxides have different intensity profiles, which suggest different oxide phases such as magnetite and maghemite. In addition, these oxides are not sensible to the laser power of the Raman system, as are the iron oxide powders reported in the literature. These experiments show that it is possible to generate periodic patterns of various iron oxide zones by laser irradiation, of stainless steel at ambient conditions, and that Raman spectroscopy is a useful punctual technique for the analysis and inspection of small oxide areas.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 128, 15 July 2014, Pages 681–685
نویسندگان
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