کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4986915 1454957 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Si and Al additions to carbon steel on material transfer and coating damage mechanism in turning with CVD coated tools
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Effect of Si and Al additions to carbon steel on material transfer and coating damage mechanism in turning with CVD coated tools
چکیده انگلیسی
Material transfer from the work materials to the tools strongly influences machining performance and tool life. The influence of Si and Al additions to carbon steel on the material transfer and coating wear in turning with CVD coated carbide tools is investigated. Three model steels are specifically designed to separately study the effects of the individual alloying elements: one reference steel with C as the only alloying element (Base steel), and two steels alloyed also with 1 mass% Si or Al. In the region around the depth of cut on the rake face, where the outside edge of the chip passes over the tool surface, the coating is worn mainly by abrasion when cutting the Base steel. When cutting the Si alloyed steel, an almost pure Si-O transfer layer covers the coating surface, which protects it from wear. When cutting the Al alloyed steel, an almost pure Al-O transfer layer forms on the coating. This layer promotes steel transfer and associated adhesive wear of the coating, which rapidly results in coating detachment and eventually causes notch wear. In the crater region, only the Al alloyed steel results in a transfer layer, an AlN layer that reduces the crater wear.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 368–369, 15 December 2016, Pages 379-389
نویسندگان
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