کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8027705 | 1517625 | 2014 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties of NiCrBSi coating, as sprayed and remelted by different technologies
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The work is focused on the evaluation of mechanical properties of thermally sprayed NiCrBSi coatings, as-sprayed and further thermally post-treated by four different technologies (flame, furnace, electric resistance and high power laser remelting). The evaluation addresses specifically the coatings microstructure, hardness, modulus of elasticity, wear resistance and friction behavior. As a result of thermal post-treatment with all four used remelting technologies, the successful elimination of splat boundaries and decrease of coatings porosity were achieved. The difference between used remelting technologies was observed in the amount of dilution between coatings and substrate material, resulting in a decrease of measured Vickers microhardness and surface hardness and causing gradual changes of instrumented hardness and modulus of elasticity. The remelting enhanced the coating cohesion, which led to an increase of the abrasive wear resistance and corrosion resistance, but has low influence on the sliding wear behavior, irrespective of the used remelting technology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 253, 25 August 2014, Pages 14-26
Journal: Surface and Coatings Technology - Volume 253, 25 August 2014, Pages 14-26
نویسندگان
Å árka Houdková, Eva Smazalová, Marek VostÅák, Jan Schubert,