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首页> 外文期刊>Journal of nano research >Wear Behavior of Multilayer Nanocomposite TiAlSiN/TiSiN/TiAlN Coated Carbide Cutting Tool during Face Milling of Inconel 718 Superalloy
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Wear Behavior of Multilayer Nanocomposite TiAlSiN/TiSiN/TiAlN Coated Carbide Cutting Tool during Face Milling of Inconel 718 Superalloy

机译：Inconel 718高温合金面铣削中多层纳米复合TiAlSiN / TiSiN / TiAlN涂层硬质合金刀具的磨损行为

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摘要

The Inconel 718 superalloy is one of the most-used nickel based superalloys in the aerospace industry due to its superior mechanical properties, for instance, high thermal and chemical resistance, and high strength at elevated temperatures. However, the work hardening tendency, low thermal conductivity and high hardness of this superalloy cause early tool wear, leading to the material to be called as a hard-to-cut material. Therefore, deposition of a wear resistant hard coating on carbide cutting tools has a critical importance for longer tool life in milling operations of the Inconel 718 superalloy. In this study, carbide cutting tools were coated with multilayer nanocomposite TiAlSiN/TiSiN/TiAlN coating using the magnetron sputtering technique, and wear behavior of the coated tool was investigated during face milling of the Inconel 718 superalloy under dry conditions. Abrasive and adhesive wear mechanisms were founded as main failure mechanisms. The nanocomposite TiAlSiN/TiSiN/TiAlN coated carbide cutting tool gave better wear resistance, and thus it provided 1.7 times longer tool life and a smoother surface (R-a<0.18 mu m) on the Inconel 718 material than the uncoated one.
机译：Inconel 718高温合金是航空航天业中最常用的镍基高温合金之一，因为它具有优越的机械性能，例如，高耐热性和耐化学性以及在高温下的高强度。但是，这种高温合金的加工硬化趋势，低导热性和高硬度会导致早期的工具磨损，从而导致这种材料被称为难切削材料。因此，在硬质合金切削刀具上沉积耐磨硬质涂层对于延长Inconel 718超级合金铣削操作的刀具寿命至关重要。在这项研究中，硬质合金切削刀具使用磁控溅射技术涂覆了多层纳米复合TiAlSiN / TiSiN / TiAlN涂层，并在干燥条件下对Inconel 718高温合金的端面铣削过程中研究了涂层刀具的磨损行为。建立了磨料和粘合剂磨损机制作为主要的故障机制。纳米复合TiAlSiN / TiSiN / TiAlN涂层硬质合金刀具具有更好的耐磨性，因此与未涂层的刀具相比，它在Inconel 718材料上提供了1.7倍的刀具寿命和更光滑的表面（R-a <0.18μm）。

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