A comparison of the corrosion behaviour and hardness of steel samples (100Cr6) coated with titanium nitride and chromium nitride by different institutions using different deposition techniques
A comparison of the corrosion behaviour and hardness of steel samples (100Cr6) coated with titanium nitride and chromium nitride by different institutions using different deposition techniques
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DOI：
10.1016/0921-5093(91)90487-8
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发表时间：
1991-07
期刊：
影响因子：
6.4
通讯作者：
A. Schröer;W. Ensinger;G. Wolf
中科院分区：
文献类型：
--
作者：
A. Schröer;W. Ensinger;G. Wolf
硬涂层的沉积可能会影响散装材料的机械性能及其耐腐蚀性。在这项工作中，我们研究了涂层和背面的100Cr6钢板的硬度。电化学腐蚀测试在25 °C下在pH 5.6的O2饱和乙酸盐缓冲液中进行。比较了电弧、磁控溅射、离子束辅助沉积（IBAD）等不同物理气相沉积工艺制备的氮化铬和氮化钛涂层。结果表明，为了充分的腐蚀保护，氮化铬层必须厚于500 nm。IBAD工艺的蒸发室中增加的氮气分压显著改善了耐腐蚀性。仅在热离子电弧蒸发的情况下，基材的硬度降低，表明沉积温度高于250 °C。然而，对于这个过程，我们获得了最好的腐蚀结果。
Deposition of hard coatings may influence the mechanical properties of the bulk material and its corrosion resistance. In this work we study the hardness of the coated and the back side of 100Cr6 steel plates. Electrochemical corrosion tests were performed in O2-saturated acetate buffer of pH 5.6 at 25 °C. Chromium nitride and titanium nitride coatings prepared by different physical vapour deposition processes, such as arc, thermionic arc evaporation, magnetron sputtering and ion-beam-assisted deposition (IBAD) were compared. The results show that, for sufficient corrosion protection, chromium nitride layers have to be thicker than 500 nm. An increased nitrogen partial pressure in the evaporation chamber of the IBAD process improves the corrosion resistance significantly. The hardness of the substrates was reduced in the case of thermoionic arc evaporation only, indicating a deposition temperature of more than 250 °C. For this process, however, we obtained the best corrosion results.