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首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >Influence of nanolayer thickness on the performance properties of multilayer composite nano-structured modified coatings for metal-cutting tools
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Influence of nanolayer thickness on the performance properties of multilayer composite nano-structured modified coatings for metal-cutting tools

机译：纳米厚度对金属切削工具多层复合纳米结构改性涂层性能的影响

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摘要

The paper considers multilayer composite nano-structured modified Ti-TiCN-(Ti,Al)CN coatings for metal-cutting tools. The coatings under the study have identical elemental composition (Al 30 at.%, Ti 70 at.%) and thickness (5 mu m), but differ in the thicknesses of the nanolayers. The mechanical characteristics of the coatings were studied, and the tool life tests were carried out for carbide tools with the above coatings for dry turning of steel C45 at v (c) = 300, 350, and 400 m/min. Microstructural studies (using SEM) of the nature of wear and failure of metal-cutting tools with the coatings under study were conducted. It was found that, with the same strength of adhesion bond to the substrate, a coating with thicker sub-nanolayers has a greater tendency toward interlayer and inter-sublayer delamination. A tool with a coating characterized by a lower thickness of sub-nanolayers showed the longest tool life at all cutting speeds.
机译：本文考虑用于金属切削工具的多层复合纳米结构改性Ti-TiCN-（Ti，Al）CN涂层。 该研究下的涂层具有相同的元素组合物（Al 30.％，Ti 70.％）和厚度（5μm），但在纳米层的厚度中不同。 研究了涂层的机械特性，并且对碳化物工具进行了刀具寿命试验，其具有上述涂层，用于在V（C）= 300,350和400米/分钟的V（C）= 300,350和400米/分钟的钢C45。 进行微观结构研究（使用SEM）与研究中的涂层的金属切削工具的磨损性质的性质。 发现，具有与基板的粘合键相同的强度，具有较厚的亚纳米层的涂层具有更大的朝向中间层和子层间分层的趋势。 具有较低厚度的子纳米层的涂层的工具在所有切割速度下显示了最长的工具寿命。

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