کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1656552 1517594 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Environmental resistance of oxide tags fabricated on 304L stainless steel via nanosecond pulsed laser irradiation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Environmental resistance of oxide tags fabricated on 304L stainless steel via nanosecond pulsed laser irradiation
چکیده انگلیسی


• Laser-stimulated oxidation of stainless steel
• Fabrication of single layer coatings and multilayer coatings
• Environmental resistance of single-layer and multilayer oxides
• Correlation of environmental resistance with oxide thickness, structure, and morphology

Nanosecond pulsed laser irradiation was used to fabricate colored, mechanically robust oxide “tags” on 304L stainless steel. Immersion in simulated seawater solution, salt fog exposure, and anodic polarization in a 3.5% NaCl solution were employed to evaluate the environmental resistance of these oxide tags. Single layer oxides outside a narrow thickness range (~ 100–150 nm) are susceptible to dissolution in chloride containing environments. The 304L substrates immediately beneath the oxides corrode severely—attributed to Cr-depletion in the melt zone during laser processing. For the first time, multilayered oxides were fabricated with pulsed laser irradiation in an effort to expand the protective thickness range while also increasing the variety of film colors attainable in this range. Layered films grown using a laser scan rate of 475 mm/s are more resistant to both localized and general corrosion than oxides fabricated at 550 mm/s. In the absence of pre-processing to mitigate Cr-depletion, layered films can enhance environmental stability of the system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 285, 15 January 2016, Pages 87–97
نویسندگان
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