کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1614005 1516323 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dilution of molybdenum on aluminum during laser surface alloying
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Dilution of molybdenum on aluminum during laser surface alloying
چکیده انگلیسی
A multiphysics based computational model was developed to predict the dilution of molybdenum (Mo) on an aluminum (Al) substrate during the laser surface alloying process. The influence of laser surface alloying processing parameters such as input energy, scanning speed, and overlapping ratio on dilution of Mo in Al was explored via computational model. The computational model, closely predicts the melt pool geometry (width and depth) that subsequently helps in estimating dilution. It was observed that the dilution increases with the increase in laser power, while it decreases with the increase in scanning speed. The phase and microstructural analyses revealed the existence of Al5Mo intermetallic for most of the laser surface alloying processing conditions. However, at higher (3.18 × 107 J/m2) and lower (1.91 × 107 J/m2) laser energy densities, the Al8Mo3 intermetallic was also evolved. These experimental observations validate the model's predictions and points to its reliability in predicting the expected intermetallics in Al-Mo system for various laser surfacing alloying processing conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 570, 5 September 2013, Pages 133-143
نویسندگان
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