The purpose of this paper is to examine the influence of cold spraying parameters on the performance of Fe-based amorphous alloy (FAA) coating. A FeCoCrMoBCY amorphous alloy coating was prepared on a 40Cr substrate by cold-spraying with different gas pressures and temperatures. The results show that the spray temperature has no substantial effect on the amorphous content during deposition. The porosity of the FAA coatings decreases with the increase of the spray parameters. The hardness of the cold sprayed coatings decreases slightly as the spraying parameter decreases. Wear tests show that cold spraying FAA coating can provide excellent wear protection. The high porosity induced by the insufficient deformation of the hard FAA particles leads to an acceleration in corrosion for the substrate. Cold-spraying can be used to fabricate FAA coating with good wear resistance, but sealing is still necessary to guarantee the corrosion resistance since.

本文的目的是研究冷喷涂参数对铁基非晶合金（FAA）涂层性能的影响。通过在不同气压和温度下进行冷喷涂，在40Cr基底上制备了FeCoCrMoBCY非晶态合金涂层。结果表明，喷涂温度对沉积过程中的非晶含量没有实质性影响。随着喷涂参数的增加，FAA涂层的孔隙率降低。随着喷涂参数的降低，冷喷涂涂层的硬度略有降低。磨损测试表明，冷喷涂FAA涂层可以提供出色的磨损保护。硬质FAA颗粒变形不足引起的高孔隙率导致基材腐蚀加速。