Thermal stability of PVD hard coatings
Thermal stability of PVD hard coatings
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DOI：
10.1016/s0042-207x(02)00751-0
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发表时间：
2003-05-09
期刊：
影响因子：
4
通讯作者：
Musil, J
中科院分区：
文献类型：
--
作者：
Mitterer, C;Mayrhofer, PH;Musil, J
目前，以过渡金属氮化物为基础的物理气相沉积硬质涂层被广泛应用于减少刀具磨损。本文旨在揭示晶粒度、应力、化学成分和相组成等微观结构参数对不同硬质涂层热稳定性的影响。使用单相涂层如TiN、(Ti，Al，V)N和CrN以及双相纳米复合涂层CrN-Cr2N和TiN-TiB2证明了这一点。结果表明，与纳米复合涂层一样，引入高密度的相界可以提高涂层的抗回复和抗再结晶性能。(C)2003爱思唯尔科学有限公司。保留所有权利。
Hard coatings deposited by physical vapour deposition based on the transition metal nitrides are nowadays widely applied to reduce tool wear. The aim of this paper is to show how microstructural parameters like grain size, stress and chemical and phase composition influence the thermal stability of different hard coatings. This is demonstrated using single-phase coatings like TiN, (Ti, Al, V)N and CrN as well as the dual-phase nanocomposite coatings CrN-Cr2N and TiN-TiB2. It is shown that the resistance against recovery and recrystallization can be improved by introducing a high density of phase boundaries, as is the case for nanocomposite coatings. (C) 2003 Elsevier Science Ltd. All rights reserved.