Zhuo Guanqun, Su Linfen, Jiang Kaiyong, Yang Jianyong
College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China.
Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China.
Materials (Basel). 2020 Nov 10;13(22):5060. doi: 10.3390/ma13225060.
The MoSi-ZrB coatings were prepared on Nb-Si based alloy by atmospheric plasma spraying with the spraying power 40, 43 and 45 kW. The effect of spraying power on the microstructure and oxidation resistance of MoSi-ZrB coating at 1250 °C were studied. The results showed that the main constituent phases of coatings were MoSi at all spraying power. The coating became more compact as the spraying power increased. The coating prepared at 45 kW was dense and uniform, which exhibited the best oxidation resistance due to the formation of a dense and uniform glass layer consisting of SiO and ZrSiO.
采用大气等离子喷涂法，在40、43和45千瓦的喷涂功率下，在Nb-Si基合金上制备了MoSi-ZrB涂层。研究了喷涂功率对1250℃下MoSi-ZrB涂层微观结构和抗氧化性能的影响。结果表明，在所有喷涂功率下，涂层的主要组成相均为MoSi。随着喷涂功率的增加，涂层变得更加致密。在45千瓦功率下制备的涂层致密且均匀，由于形成了由SiO和ZrSiO组成的致密均匀玻璃层，其抗氧化性能最佳。
