کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7132455 | 1461715 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Porous microstructures induced by picosecond laser scanning irradiation on stainless steel surface
ترجمه فارسی عنوان
ریزساختارهای پوسیدگی ناشی از اشعه لیزر اسکن لیزر بر روی سطح فولاد ضد زنگ
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
چکیده انگلیسی
A study of porous surfaces having micropores significantly smaller than laser spot on the stainless steel 304L sample surface induced by a picosecond regenerative amplified laser, operating at 1064 nm, is presented. Variations in the interaction regime of picosecond laser pulses with stainless steel surfaces at peak irradiation fluences(Fpk=0.378-4.496 J/cm2) with scanning speeds(v=125-1000 μm/s) and scan line spacings(s=0-50 μm) have been observed and thoroughly investigated. It is observed that interactions within these parameters allows for the generation of well-defined structured surfaces. To investigate the formation mechanism of sub-focus micropores, the influence of key processing parameters has been analyzed using a pre-designed laser pulse scanning layout. Appearances of sub-focus ripples and micropores with the variation of laser peak fluence, scanning speed and scan line spacing have been observed. The dependencies of surface structures on these interaction parameters have been preliminarily verified. With the help of the experimental results obtained, interaction parameters for fabrication of large area homogeneous porous structures with the feature sizes in the range of 3-15 μm are determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 78, March 2016, Pages 55-63
Journal: Optics and Lasers in Engineering - Volume 78, March 2016, Pages 55-63
نویسندگان
Bin Liu, Gedong Jiang, Wenjun Wang, Xuesong Mei, Kedian Wang, Jianlei Cui, Jiuhong Wang,