Improved hot corrosion resistance of Y-Ce-Co-modified aluminide coating on nickel base superalloys by pack cementation process
Improved hot corrosion resistance of Y-Ce-Co-modified aluminide coating on nickel base superalloys by pack cementation process
复制标题
采用包渗工艺提高镍基高温合金Y-Ce-Co改性铝化物涂层的热腐蚀性能
DOI：
10.1016/j.corsci.2014.11.043
复制
发表时间：
2015-03-01
影响因子：
8.3
通讯作者：
Zhou, Chungen
中科院分区：
文献类型：
--
作者：
Liu, Zongjie;Zhao, Xiongsheng;Zhou, Chungen
采用包渗法在镍基高温合金上制备了Y-Ce-Co改性铝化物涂层。研究了涂层的显微组织和热腐蚀行为。结果表明，Y-Ce-Co改性铝化物涂层在1173 k热腐蚀100 h后质量增益仅为0.32 mg/cm(2)。该涂层表现出比钴改性和钴改性铝化物涂层更优异的耐热腐蚀性能。 Y-Ce-Co改性铝化物涂层抗热腐蚀性能的提高主要归功于Y和Ce的协同作用。 (C) 2014 Elsevier Ltd. 保留所有权利。
Y-Ce-Co-modified aluminide coating on nickel base superalloys was prepared by pack cementation method. The microstructure and hot corrosion behavior of the coating were investigated. The results indicate that Y-Ce-Co-modified aluminide coating has a mass gain of only 0.32 mg/cm(2) after hot corrosion at 1173 k for 100 h. The coating exhibits superior hot corrosion resistance to they-Co-modified and Co-modified aluminide coatings. The improved hot corrosion resistance of the Y-Ce-Co-modified aluminide coating is mainly attributed to the synergistic effect of Y and Ce. (C) 2014 Elsevier Ltd. All rights reserved.