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首页> 外文会议>International Conference on Advanced Ceramics and Composites >INVESTIGATION OF MULTILAYER SUPERHARD Ti-Hf-Si-N/NbN/Al_2O_3 COATINGS FOR HIGH PERFORMANCE PROTECTION
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INVESTIGATION OF MULTILAYER SUPERHARD Ti-Hf-Si-N/NbN/Al_2O_3 COATINGS FOR HIGH PERFORMANCE PROTECTION

机译：多层超硬Ti-HF-Si-N / NBN / AL_2O_3高性能保护涂层的研究

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摘要

In this work we first obtained multilayered solid micro-and nanostructured coatings produced by several deposition techniques based on Ti-Hf-Si-N/NbN/Al_2O_3 on the steel substrate. It was found that the investigated coatings, along with high hardness (H) from 47 to 56 GPa and modulus of elasticity (E) from 435 to 570 GPa, the plasticity index We = (0.08-0.11), have a fairly low coefficient of friction (μ) which varies from 0.02 to 0.001 for a given mode of deposition. It is also shown that these multilayered coatings have high thermal stability (above 1000C). The annealing temperature up to 1070°C in a vacuum about 10~(-2) Pa showed that the coating in the upper layers consisting of Ti-Hf-Si-N/NbN the size of nanograins increases from 25 to 56 nm (for the Ti-Hf-Si-N) and from 14-15 to 35-37 nm for NbN. The increase of steel microhardness at the "coating - substrate" interface, is due to the presence of the hardening near the border with coating formed as a result of impact during abrasive blasting and deposition of coating.
机译：在这项工作中，我们首先获得通过基于钢基材上的Ti-HF-Si-N / NBN / Al_2O_3产生的多个沉积技术产生的多层固体微型和纳米结构涂层。发现研究的涂层，以及高硬度（H）的47-56GPa和弹性模量（e），从435-570GPa，可塑性指数我们=（0.08-0.11），具有相当低的系数对于给定的沉积方式，变化的摩擦（μ）0.02至0.001。还表明这些多层涂层具有高热稳定性（高于1000℃）。真空中的退火温度高达1070℃，约10〜（ - 2）Pa显示，由Ti-Hf-Si-N / NbN组成的上层中的涂层从25-56nm增加（用于Ti-HF-Si-n）和14-15至35-37nm用于NBN。 “涂层 - 基板”界面处的钢微硬度的增加是由于由于在磨料喷砂和涂层沉积期间形成的边界附近的固定。

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