γ'相元素对纳米晶涂层在1050℃下氧化行为的影响。

Effect of γ' Phase Elements on Oxidation Behavior of Nanocrystalline Coatings at 1050 °C.

作者信息

Wang Jinlong, Yang Lanlan, Yang Shasha, Jia Yixuan, Chen Minghui, Qiao Yanxin, Guo Pingyi, Zhu Shenglong, Wang Fuhui

机构信息

Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China.

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China.

出版信息

Materials (Basel). 2021 Jan 4;14(1):202. doi: 10.3390/ma14010202.

DOI:10.3390/ma14010202

PMID:33406581

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7795590/

Abstract

To study the effect of γ' phase elements on the oxidation behavior of nanocrystalline coatings, two comparable nanocrystalline coating systems were established and prepared by magnetron sputtering. The oxidation experiments of the nanocrystalline coatings on the K38G and N5 superalloys were carried at 1050 °C for 100 h, respectively. The chemical composition of the above coatings is the same as the substrate alloy, including the γ' elements, such as Al, Ta, and Ti. After serving at a high temperature for certain periods, their oxides participated and then affected the oxidation behavior of the coatings. The AlO scale can be formed on the N5 coating, which cannot be formed on the K38G coating. Tantalum and titanium oxides can be detected on the oxide scale, which ruin its purity and integrity.

摘要

为研究γ'相元素对纳米晶涂层氧化行为的影响，通过磁控溅射建立并制备了两种可比的纳米晶涂层体系。分别在1050℃下对K38G和N5高温合金上的纳米晶涂层进行了100小时的氧化实验。上述涂层的化学成分与基体合金相同，包括γ'元素，如铝、钽和钛。在高温下服役一定时间后，它们的氧化物参与其中，进而影响涂层的氧化行为。N5涂层上可形成AlO氧化皮，而K38G涂层上则无法形成。在氧化皮上可检测到钽和钛的氧化物，这破坏了其纯度和完整性。