کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5353023 | 1503683 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Darkening effect on AZ31B magnesium alloy surface induced by nanosecond pulse Nd:YAG laser
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Darkening effect on AZ31B magnesium alloy surface induced by nanosecond pulse Nd:YAG laser Darkening effect on AZ31B magnesium alloy surface induced by nanosecond pulse Nd:YAG laser](/preview/png/5353023.png)
چکیده انگلیسی
Permanent darkening effect was achieved on surface of AZ31B Mg alloy irradiated with nanosecond pulse Nd:YAG laser, and special attention was made to examine how surface structure as well as oxidation affect the darkening effect. Experiments were carried out to characterize morphological evolution and chemical composition of the irradiated areas by optical reflection spectrometer, Talysurf surface profiler, SEM, EDS, and XPS. The darkening effect was found to be occurred at the surface under high laser energy. Optical spectra showed that the induced darkening surface was uniform over the spectral range from 200Â nm to 1100Â nm. SEM and surface profiler showed that surface morphology of darkening areas consisted of large number of micron scale cauliflower-like clusters and protruding particles. EDS and XPS showed that compared to non-irradiated area, oxygen content at the darkening areas increased significantly. It was proposed a mechanism that involved trapping of light in the surface morphology and chemistry variation of irradiated areas to explain the laser-induced darkening effect on AZ31B Mg alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 280, 1 September 2013, Pages 462-466
Journal: Applied Surface Science - Volume 280, 1 September 2013, Pages 462-466
نویسندگان
Y.C. Guan, W. Zhou, H.Y. Zheng, Z.L. Li,