Impact wear and abrasion resistance of CrN, AlCrN and AlTiN PVD coatings
Impact wear and abrasion resistance of CrN, AlCrN and AlTiN PVD coatings
复制标题
CrN、AlCrN 和 AlTiN PVD 涂层的冲击磨损和耐磨性
DOI：
10.1016/j.surfcoat.2012.08.077
复制
发表时间：
2013-01
影响因子：
5.4
通讯作者：
Matthews, A.
中科院分区：
文献类型：
--
作者：
Mo, J. L.;Zhu, M. H.;Leyl;, A.;Matthews, A.
通过循环冲击磨损和微磨损试验，对采用多弧物理气相沉积（PVD）技术在硬质合金基体上沉积的CrN、AlCrN和AlTiN涂层的性能进行了评价。在冲击磨损试验中，使用6 mm直径的碳化钨球作为冲击体，冲击频率（f）设定为10 Hz。在微观磨损试验中，采用直径为25 mm的微喷砂硬化钢球作为摩擦副，SiC颗粒（平均粒径为4-5μm）在蒸馏水中的悬浮液作为磨料浆。在这些磨损试验之后，通过触针轮廓术、SEM和EDX研究磨损坑，以调查磨损行为。结果表明，CrN涂层遭受更严重的冲击变形相比，两个三元涂层，并表现出非线性增加的最大磨损深度与冲击循环次数的增加。CrN涂层的冲击磨损机制主要为塑性变形和微观分层。在三种涂层中，AlTiN涂层表现出最差的耐冲击磨损性，主要是由于粘着磨损;相比之下，AlCrN涂层表现出较低的涂层拾取球配合面材料的趋势，因此表现出良好的耐冲击磨损性。在三种涂层中，AlCrN涂层的冲击磨损性能和耐磨性最好。由于CrN涂层的硬度较低，其耐磨性最差。CrN涂层的磨粒磨损机制是塑性变形、细裂纹和微剥落的综合作用。AlTiN涂层遭受更严重的磨料磨损相比，AlCrN涂层，虽然两种涂层具有相似的硬度。
The properties of CrN, AlCrN and AlTiN coatings deposited on cemented carbide substrates by a multiple-arc Physical Vapour Deposition (PVD) technique were evaluated by cyclic impact wear and micro-scale abrasion testing. In the impact wear test, a 6mm diameter tungsten carbide ball was used as the impacting body and the impact frequency (f) was set at 10Hz. In the micro-scale abrasion test, a micro-blasted 25mm diameter hardened steel ball was used as the counterface and a suspension of SiC particles (mean size of 4–5μm) in distilled water as the abrasive slurry. After these wear tests, the wear craters were studied by stylus profilometry, SEM and EDX, to investigate wear behaviour. It is shown that the CrN coating suffered much more severe impact deformation as compared to the two ternary coatings, and exhibited a non-linear increase of the maximum wear depth with increasing number of impact cycles. The impact wear mechanisms of the CrN coating were mainly plastic deformation and micro-delamination. The AlTiN coating exhibited the worst impact wear resistance among the three coatings, mainly due to adhesive wear; in contrast, the AlCrN coating exhibited a lower tendency for the coating to pick-up the ball counterface material, and accordingly demonstrated good impact wear resistance. The AlCrN coating exhibited both the best impact wear performance and the best abrasion resistance amongst the three coatings. The CrN coating exhibited the worst abrasive wear resistance due to its comparatively low hardness. The abrasive wear mechanisms of the CrN coating were a combination of plastic deformation, fine micro-cracking and micro-spallation. The AlTiN coating suffered more severe abrasive wear compared to the AlCrN coating, although both coatings had similar hardnesses.
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DOI：
--
发表时间：
2009-04
期刊：
--
影响因子：
--
作者：
K. Holmberg;A. Matthews
通讯作者：
K. Holmberg;A. Matthews
影响因子：
5.4
作者：
A. Sugishima;H. Kajioka;Y. Makino
通讯作者：
A. Sugishima;H. Kajioka;Y. Makino
影响因子：
5
作者：
M. Scholl
通讯作者：
M. Scholl
影响因子：
5
作者：
Gee, MG;Gant, AJ;Plint, G
通讯作者：
Plint, G
影响因子：
5
作者：
G. Cassar;S. Banfield;J. I. B. Wilson;J. Housden;A. Matthews;A. Leyland
通讯作者：
G. Cassar;S. Banfield;J. I. B. Wilson;J. Housden;A. Matthews;A. Leyland