کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10668058 | 1008284 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of the remelting scanning speed on the amorphous forming ability of Ni-based alloy using laser cladding plus a laser remelting process
ترجمه فارسی عنوان
تاثیر سرعت اسکن کردن باز یابی بر توانایی تشکیل آمورفی آلیاژ بر پایه نیکل با استفاده از پوشش لیزری به همراه فرآیند بازیابی لیزری
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کلمات کلیدی
لیزر دیود با قدرت بالا روکش فلزی لیزری، آمورف شبیه سازی عددی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Amorphous coatings exhibit prominent properties, including high hardness and good wear resistance properties. In this study, Ni-based amorphous composite coatings with a composition of (Ni0.6Fe0.4)68B18Si10Nb4 were prepared on a mild steel substrate via high power diode laser cladding plus laser remelting processes. The microstructure of the coating was studied using X-ray diffraction (XRD) and a scanning electron microscope (SEM). The effect of the remelting scanning speed on the amorphous forming ability of the Ni-based alloy was studied systematically by experimental and numerical simulation methods. The results indicated that there was no amorphous phase formed when the scanning speed was 4Â m/min and 5Â m/min. The amorphous phase was observed when the remelting scanning speed was 6Â m/min. The amorphous phase volume fraction increased with an increase in the remelting scanning speed. The fraction was found to be approximately 64% when the remelting speed was 8Â m/min. The simulation results indicate that the increase in the remelting scanning speed may lead to lower residence time and higher cooling rate of the melted pool. As a result, high remelting scanning speed can be concluded to be a necessary condition for the formation of the amorphous phase when using the laser cladding plus laser remelting process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 259, Part C, 25 November 2014, Pages 725-731
Journal: Surface and Coatings Technology - Volume 259, Part C, 25 November 2014, Pages 725-731
نویسندگان
Ruifeng Li, Yajuan Jin, Zhuguo Li, Yanyan Zhu, Mingfang Wu,