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本文研究了不同程度合金化高速钢非涂层和物理气相沉积TiN涂层试样的抗干滑动磨损性能、磨损机理以及不同高速钢车刀片切削40Cr、GCr15和1Crl8Ni9Ti不锈钢时涂层和非涂层刀具的切削性能。试验表明,TiN涂层高速钢耐磨性较非涂层钢提高近一个数量级。低合金高速钢D950和Vasco Dyne的耐磨性不亚于通用高速钢M2。涂层试样磨损机理主要为粘附-接触疲劳剥落磨损。涂层刀具切削性能较非涂层刀具大为提高。涂层低合金高速钢刀具性能不亚于涂层通用高速钢M2。试验结果表明,TiN涂层的应用为高速钢特别是低合金高速钢的开发应用提供了广阔的前景,涂层刀具在中硬及难加工材料的切削加工方面有着应用的潜力。对PVD TiN涂层的微观组织,结构等也进行了研究。
In this paper, the anti-dry sliding wear properties and wear mechanism of different levels of alloying high-speed steel uncoated and physical vapor deposited TiN coating samples and the coating and non-coating of 40Cr, GCr15 and 1Crl8Ni9Ti stainless steels Cutting tool performance. Tests show that the wear resistance of TiN coated HSS is nearly an order of magnitude higher than uncoated steel. Low-alloy high-speed steel D950 and Vasco Dyne abrasion resistance of no less than universal high-speed steel M2. The wear mechanism of the coating sample is mainly adhesion-contact fatigue flaking wear. Coating cutting performance than non-coated cutting tools greatly improved. Coating low-alloy high-speed steel tool performance no less than the coating of common high-speed steel M2. The experimental results show that the application of TiN coating offers a bright prospect for the development and application of high speed steel, especially low alloy high speed steel. Coated cutting tools have potential application in the machining of medium and hard materials. The microstructure and structure of PVD TiN coating were also studied.