Microstructure and cavitation erosion behavior of sputtered NiCrAlTi coatings with and without N incorporations  

作　　者：Zhengliang Liu Shenglong Zhu Mingli Shen Yixuan Jia Wen Wang Fuhui Wang 

机构地区：[1]School of Materials Science and Engineering,University of Science and Technology of Chin1,Hefei 230000,China [2]Corrosion and Protection Division,Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China [3]Corrosion and Protection Division,Shenyang National Laboratory for Materials Science,School of Materials Science and Engineering,Northeastern University,110819 Shenyang,China

出　　处：《Journal of Materials Science & Technology》2020年第19期211-222,共12页材料科学技术（英文版）

基　　金：the National Key Research and Development Program of China(No.2018YFB2003601)。

摘　　要：The NiCrAlTi coatings free of N and with N incorporations were deposited on austenitic stainless steel304 L by magnetron sputtering in Ar and in gas mixture of Ar and N2,respectively.The N incorporated in the coatings existed as nitride precipitates(from^3 vol.%to^17 vol.%)after vacuum annealing.All the NiCrAlTi coatings,whatever free of N or with N incorporations,exhibited better resistance against cavitation erosion than ion plating Ti N coating and the substrate 304 L in ultrasonic cavitation tests.The NiCrAlTi coating free of N incorporation presents superior cavitation erosion resistance.However,the nitrogen incorporation within the NiCrAlTi coatings showed negative effects on the resistance against cavitation erosion.

关 键 词：Cavitation erosion NiCrAlTi(N)coating MICROSTRUCTURE Nitride precipitate 

分 类 号：TG174.4[金属学及工艺—金属表面处理]