Improved oxidation resistance of γ-TiAl intermetallics by sputtered Ni+CrAlYHfSiN composite coating

2021 ◽  
Vol 187 ◽  
pp. 109510
Author(s):  
Yingfei Yang ◽  
Qin Xiao ◽  
Pan Ren ◽  
Wei Li ◽  
Shenglong Zhu ◽  
...  
2016 ◽  
Vol 19 (3) ◽  
pp. 562-571 ◽  
Author(s):  
Wan-chang Sun ◽  
Jia-wei Gu ◽  
Pei Zhang ◽  
Miao-miao Tian ◽  
Ying Wang ◽  
...  

2017 ◽  
Vol 1142 ◽  
pp. 168-172
Author(s):  
Ai Ling Fan ◽  
Ying Kun Xue ◽  
Wei Tian Li

To improve the oxidation resistance and insulation of tungsten electronic device at high temperature, an AlPO4/Al2O3 composite coating was synthesized on the tungsten substrate by sol-gel method. The morphology of coating was investigated by scanning electron microscopy (SEM). Compared to the blank specimens, the coated ones exhibit excellent oxidation resistance and insulation at about 1100, which can be attributed to the compact coating without porosity and crack. Up to 1200, the effects of coating became dramatically poor. The electron conductivity mechanism was discussed.


2015 ◽  
Vol 817 ◽  
pp. 479-483
Author(s):  
Pan Li ◽  
Wan Chang Sun ◽  
Jun Gao ◽  
Quan Zhou ◽  
Pei Zhang

Ni-P alloy and SiC micron particles were codeposited on Q235 steel by electroless plating. The composition, microstructure, micro-hardness, corrosion resistance and oxidation resistance of the composite coating were studied. The results revealed that the deposited composite coating shows dispersed SiC particles and continuous Ni-P matrix. When the content of SiC was 8g/L and the heat treatment temperature was 300°C, the corrosion potential and corrosion current of Ni-P-SiC coating were-0.292V, and 8.2×10-7 A/cm2, respectively, while those of Ni-P composite coating were-0.501V, and 4.2×10-5 A/cm2, respectively. Ni-P-SiC composite coating with high content of SiC exhibits better oxidation resistance than Ni-P coating.


2020 ◽  
Vol 820 ◽  
pp. 153303
Author(s):  
Wenbo Du ◽  
Zhengjun Yao ◽  
Shasha Zhang ◽  
Xuewei Tao ◽  
Oleksandr Moliar ◽  
...  

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