کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1662597 1008445 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and abrasive wear performance of chromium carbide reinforced Ni3Al matrix composite coating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Microstructure and abrasive wear performance of chromium carbide reinforced Ni3Al matrix composite coating
چکیده انگلیسی

A Ni–Al–Cr3C2 welding wire was produced by metal–powder–core technique. When the welding wires were welded on the surface of carbon steel, under the effect of the physical heat of arc, Ni reacted with Al to form Ni3Al and carbide particles reinforced Ni3Al matrix composite was formed. Cr3C2 was decomposed during welding and dispersed Cr7C3 with stripe shape formed, which strengthened the matrix significantly. The Cr7C3–Ni3Al interface has broadened into a zone of interdiffusion and a new phase M23C6, which indicates that a good bond has been formed. The pin-abrasion wear test showed that the abrasion resistance of Cr7C3/Ni3Al composite is six times higher than that of Stellite12 alloy at room temperature. The good wear resistance of Cr7C3/Ni3Al composite coating can be attributed to large volume fraction of carbides, high hardness, and good phases interface bond.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 201, Issue 8, 15 January 2007, Pages 4542–4546
نویسندگان
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