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High-temperature Oxidation behavior of cubic-(Ti, Al)N coatings and its application to cutting tools

机译:立方(Ti,Al)N涂层的高温氧化行为及其在切削刀具中的应用

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摘要

Cugic-(Ti_1-x Al_x)N films along with the wide-ranging solubility of AIN in TiN were stable in air at temperatures ranging from 710 deg. C for x=0.25 to 830 deg.C for x-0.6, whereas TiN films began to oxidize at a temperature of 550 deg. C. It was found that protective layers of aluminum oxides were formed on top of the (Ti, al)N films during elevated temperature oxidation tests which prevented the film from further oxidation, and as a result, tool-life tests on the (Ti, Al)N coated carbide inserts revealed superior anti-wear behavior, compared with TiN coated inserts.
机译:Cugic-(Ti_1-x Al_x)N薄膜以及AIN在TiN中的广泛溶解性在710度的空气中稳定。对于x = 0.25至830℃,对于x-0.6,TiN膜在550℃的温度开始氧化。发现在高温氧化试验中在(Ti,al)N膜的顶部形成了氧化铝保护层,这阻止了膜的进一步氧化,结果在(Ti与TiN涂层刀片相比,Al)N涂层硬质合金刀片具有优越的抗磨性能。

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