首页> 外文期刊>Applied Surface Science >Surface modification of TiAlSiCN coatings to improve oxidation protection
【24h】

Surface modification of TiAlSiCN coatings to improve oxidation protection

机译:TiAlSiCN涂层的表面改性以改善抗氧化性能

获取原文
获取原文并翻译 | 示例
           

摘要

Coatings with high thermal stability and oxidation resistance are highly anticipated for various high-temperature applications. In this work we compare three different approaches to increase the oxidation resistance of nanocomposite TiAlSiCN coatings with exceptionally high thermal stability: (i) deposition of a thin Al top-layer, (ii) Al ion implantation into their topmost surface, and (iii) deposition of a thin AlOx, top-layer. The coatings were annealed in air at 1000, 1100, and 1200 degrees C for 1 h and their oxidation was studied using scanning electron microscopy and glow discharge optical emission spectroscopy. The obtained results demonstrate that the deposition of a thin top-layer of amorphous AlOx, increases the oxidation resistance of the TiAlSiCN coatings from 1000 to 1100 degrees C. This decreases the gap between the high thermal stability (1300 degrees C) and oxidation resistance of the TiAlSiCN coatings, which is particularly important for high-speed and dry cutting applications. In contrast, the deposition of either a thin Al top-layer or Al ion implantation resulted in a negative effect. The factors affecting the rapid oxidation of such coatings at 1000 and 1100 degrees C are discussed. (C) 2015 Elsevier B.V. All rights reserved.
机译:具有很高的热稳定性和抗氧化性的涂料被期望用于各种高温应用中。在这项工作中,我们比较了三种以极高的热稳定性提高纳米复合TiAlSiCN涂层抗氧化性的方法:(i)沉积一层薄的Al顶层,(ii)将Al离子注入其最表面,以及(iii)沉积一层薄的AlOx顶层。将涂层在空气中分别在1000、1100和1200摄氏度下退火1小时,并使用扫描电子显微镜和辉光放电光发射光谱法研究其氧化。获得的结果表明,沉积一层薄薄​​的非晶态AlOx可以将TiAlSiCN涂层的抗氧化性从1000摄氏度提高到1100摄氏度。这减小了高热稳定性(1300摄氏度)和抗氧化性之间的差距。 TiAlSiCN涂层,这对于高速和干切削应用特别重要。相反,薄的铝顶层或铝离子注入的沉积导致负面影响。讨论了影响这种涂层在1000和1100摄氏度下快速氧化的因素。 (C)2015 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号