کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10668466 1008373 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cubic boron nitride based coating systems with different interlayers for cutting inserts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Cubic boron nitride based coating systems with different interlayers for cutting inserts
چکیده انگلیسی
Due to its outstanding properties, cubic boron nitride (c-BN) has a high application potential, in particular as a super hard cutting tool coating. Unfortunately until now there have been no c-BN tool coatings available at an industrial scale. The preparation of c-BN coatings with a film-thickness in the μm range is challenging and succeeded only by few research groups in the last few years. In the Fraunhofer IST a PVD sputtering process was used employing a boron carbide target in an argon/nitrogen atmosphere. By this PVD process c-BN films with a thickness between 1 and 2 μm were deposited on pre-coated cemented carbide cutting inserts. The pre-coating is an important part of the interlayer system design which is used to improve the adhesion of the c-BN film and therefore is crucial for a successful application as a cutting tool coating. Several TiAlN based coatings were deposited on cemented carbide cutting inserts and tested as interlayers for the c-BN layer system. High temperature experiments at ambient air show a high oxidation resistance of c-BN with a very high remaining hardness after heat treatment. Furthermore investigations of adhesion and wear will be presented as well as morphology and composition analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 205, Supplement 2, 25 July 2011, Pages S103-S106
نویسندگان
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