کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10418727 903206 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Relationships between in-flight particle characteristics and properties of HVOF sprayed WC-CoCr coatings
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Relationships between in-flight particle characteristics and properties of HVOF sprayed WC-CoCr coatings
چکیده انگلیسی
Commercially available WC10Co4Cr powder was thermally sprayed by HVOF process. The methane was used as the fuel gas and its flow rate was successively changed as well as the oxygen. The investigation was carried out to determine the influence of operating parameters on the evolution of velocity and temperature of in-flight particles in order to have a better understanding of the interaction between the particle and the flame jet. In relation to the particle characteristics, properties of the sprayed coatings were examined in terms of microstructure, porosity level and microhardness. The results show that the particle velocity and temperature depends strongly on the particle size. The variation of the methane flow rate has a more obvious influence on the velocity and temperature of particles than that of the oxygen. The changes of porosity and microhardness of deposited coatings are discussed corresponding to the variation of fuel and oxygen flow rates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 214, Issue 2, February 2014, Pages 456-461
نویسندگان
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