Influence of adhesion between coating and substrate on the performance of coated HSS twist drills
Influence of adhesion between coating and substrate on the performance of coated HSS twist drills
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DOI：
10.1590/s1678-58782009000400007
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发表时间：
2009-12
影响因子：
2.2
通讯作者：
R. Viana;Á. R. Machado
中科院分区：
文献类型：
--
作者：
R. Viana;Á. R. Machado
本工作分析了用于钻削铝硅合金ISO 3522 AlSi 8 Cu 3Fe的HSS M2钻头上的TiN/TiCN、TiAlN、TiN/TiAlN和TiN/TiAlN/WCC涂层的性能，将工具的寿命与涂层附着力表征实验相关联。涂层附着力的特点是使用洛氏C压痕试验和划痕试验与渐进负荷。涂层在寿命实验中的性能如下，按降序排列：TiN/TiCN、TiAlN、TiN/TiAlN/WCC和TiN/TiAlN。在TiN/TiCN的附着力表征实验中，涂层没有裂纹或分层，这证明了其在寿命实验中的最佳性能。
This work analyses the performance of the TiN/TiCN, TiAlN, TiN/TiAlN and TiN/TiAlN/WCC coatings on HSS M2 drills used in the drilling of the aluminium-silicon alloy ISO 3522 AlSi8Cu3Fe, correlating the life of the tools to the coating adhesion characterization experiments. Coating adhesion was characterized using Rockwell C indentation tests and scratch tests with progressive load. The performance of the coatings in the life experiments was the following, in decreasing order: TiN/TiCN, TiAlN, TiN/TiAlN/WCC and TiN/TiAlN. In the adhesion characterization experiments with TiN/TiCN there were no cracks or delamination of the coatings, which justifies its best performance in the life experiments.