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采用自动化高速电弧喷涂技术在镁合金基体上制备了FeCrBSiMoNbW非晶纳米晶涂层。采用Flir A20M型红外热像仪对Fe基非晶纳米晶喷涂层的表面温度场进行了实时监测。对Fe基非晶纳米晶涂层和传统的3Cr13涂层的组织结构、力学性能以及摩擦学性能进行了对比分析。实验结果表明:Fe基非晶纳米晶涂层组织致密,孔隙率低,具有相对较高的硬度和拉伸结合强度;形成了非晶相和纳米晶相组成的复合结构,使得涂层具备较好的耐磨减摩性能。
FeCrBSiMoNbW amorphous nanocrystalline coatings were prepared on magnesium alloy substrates by automated high-speed arc spraying. The surface temperature field of Fe-based amorphous nanocrystalline sprayed coatings was monitored in real-time using the Flir A20M thermal imaging camera. The microstructure, mechanical properties and tribological properties of Fe-based amorphous nanocrystalline coatings and conventional 3Cr13 coatings were compared and analyzed. The experimental results show that the Fe-based amorphous nanocrystalline coating has a dense structure with low porosity and relatively high hardness and tensile bond strength. A composite structure of amorphous phase and nanocrystalline phase is formed, Good wear-resistant anti-friction performance.