کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10156063 1666371 2018 45 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tribological properties, oxidation resistance and turning performance of AlTiN/AlCrSiN multilayer coatings by arc ion plating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Tribological properties, oxidation resistance and turning performance of AlTiN/AlCrSiN multilayer coatings by arc ion plating
چکیده انگلیسی
In this study, AlTiN and AlTiN/AlCrSiN coatings have been synthesized using arc ion plating for high-speed yet dry cutting applications. The effects of modulation period (from 17.8 to 4.2 nm) on microstructure, mechanical properties as well as high-temperature tribological and oxidation behavior of AlTiN/AlCrSiN multilayer coatings were investigated. AlTiN/AlCrSiN multilayer coatings exhibit a single-phase face-centered cubic structure with fine columnar grain morphologies. With the optimal modulation period of 8.3 nm, the multilayer coating can possess the highest hardness, the ratio of hardness to effective modulus and adhesion strength, thus exhibits the best wear resistance at elevated temperatures. Besides, the introduction of AlCrSiN sublayers significantly improves the oxidation resistance of AlTiN, which was oxidized entirely after heating up to 1000 °C in the air. Whereas, AlTiN/AlCrSiN multilayer coatings remain most of the nitride structure uninfluenced with a dense oxide scale (~0.3 μm thick) above. Comparing with AlTiN, the AlTiN/AlCrSiN (Λ = 8.3 nm) coated cemented carbide insert shows a notably longer lifetime during the process of high-speed yet dry machining SKD11, where the primary failure mode is the flank wear resulting from abrasive, adhesive and oxide wear.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 356, 25 December 2018, Pages 1-10
نویسندگان
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