کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8029119 1517643 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cold spray deposition of WC-17 and 12Co cermets onto aluminum
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Cold spray deposition of WC-17 and 12Co cermets onto aluminum
چکیده انگلیسی
The objective of this study was to deposit two wear- and corrosion-resistant WC cermet powders with distinct cobalt content (WC-17Co and WC-12Co) onto Al7075-T6 substrates using the Cold Gas Spraying (CGS) technique. WC-Co cermets show excellent mechanical and chemical properties and are thus extensively used in many industries. The addition of more ductile Co binder to the composite facilitates deposition by CGS while conferring proprieties that differ to those achieved with a WC-Co cermet with a lower content of ductile binder. XRD tests were run on the powder and coatings to identify all the present phases and determine the possible phase changes during spraying. The bonding strength of the coatings was measured by adherence tests (ASTM C633-08); the sliding (ASTM G99-04) and abrasive (ASTM G65-00) wear resistances of the coatings were also studied. Corrosion resistance was determined by electrochemical measurements. Such results were compared to the ones produced by conventional thermal spraying techniques. CGS yielded the deposition of dense and hard WC-17/12Co coatings with satisfactory tribological and electrochemical properties on aluminum alloy Al7075-T6.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 235, 25 November 2013, Pages 54-61
نویسندگان
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