High Temperature Oxidation Behavior of Arc-sprayed FeCrBAlMo Coating

作者：Zhang, Xin; Wang, Zehua^*; Zhou, Zehua; Lin, Jinran

来源：Journal of Advanced Oxidation Technologies, 2016, 19(1): 105-112.

DOI：10.1515/jaots-2016-0114

• high velocity arc spraying
• iron-based coating
• FeCrBAlMo coating
• high temperature oxidation resistance
• oxide scale

FeCrBAlMo coating was deposited on an AISI 20 steel substrate by high velocity arc spraying (HVAS). Compared with FeCrBSiMo coating and pristine AISI 20 steel, the microstructure and high temperature oxidation behavior of FeCrBAlMo coating were investigated by optical microscopy, scanning electron microscopy, energy-dispersive spectroscopy and X-ray diffraction. Meanwhile, the bonding strength of the coatings was also measured. The results indicated that both coatings were composed of. (Fe, Cr) and Fe2O3 phases. FeCrBAlMo coating had a denser structure and a higher bonding strength than FeCrBSiMo coating. The mass gain of FeCrBAlMo coating after oxidization at high temperatures was distinctly lower than that of FeCrBSiMo coating and AISI 20 steel substrate. In place of silicon, addition of aluminum increased the high temperature oxidation resistance and improved the quality of the coating.

• 出版日期2016-1-31
• 单位河海大学