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
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
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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
Journal: Surface and Coatings Technology - Volume 205, Supplement 2, 25 July 2011, Pages S103-S106
نویسندگان
Christian Stein, Martin Keunecke, Klaus Bewilogua, Thomas Chudoba, Werner Kölker, Henk van den Berg,