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发明公开
CN108823526A 一种纳米多层复合超硬刀具涂层及其制备方法 有权

一种纳米多层复合超硬刀具涂层及其制备方法
摘要：
本发明提供的纳米多层复合超硬刀具涂层，由依次沉积在刀具基体材料上的Cr过渡层（金属结合层）、CrN过渡层、CrN/TiAlSiYN交替层构成，所述CrN/TiAlSiYN交替层由CrN层、TiAlSiYN层依次交替沉积构成。所述TiAlSiYN层的组成组分按重量份计由15~35份的Ti，25~50份的Al，25~60份的N，3~5份的Si，0.8~1.5份的Y组成。本发明还提供了所述涂层的制备方法。本发明可提高刀具涂层的强度、韧性、耐热性以及膜基结合强度。
摘要（英）：

The invention provides a nanometer multi-layer composite superhard cutting tool coating layer. The nanometer multi-layer composite superhard cutting tool coating layer is prepared by sequentially depositing a Cr (chromium) transition layer (metal bonding layer), a CrN (chromium nitride) transition layer and a CrN/TiAlSiYN alternative layer on a substrate material of a cutting tool, wherein the CrN/TiAlSiYN alternative layer is formed by sequentially and alternatively depositing the CrN layer and the TiAlSiYN layer; the TiAlSiYN layer is prepared from the following components in parts by weight: 15 to 35 parts of Ti (titanium), 25 to 50 parts of Al (aluminum), 25 to 60 parts of N (nitrogen), 3 to 5 parts of Si (silicon), and 0.8 to 1.5 parts of Y (yttrium). The invention also provides a preparation method of the nanometer multi-layer composite superhard cutting tool coating layer. The nanometer multi-layer composite superhard cutting tool coating layer has the advantage that the hardness, toughness, heat-resistant property and film-substrate bonding strength are improved.

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