ABSTRACT The deposition of steel powders on glass fiber reinforced polymer (GFRP) with the Cold Spray technique is investigated. Metallization of composite materials is still challenging when high-strength and dense powders, such as steel, are used due to excessive erosion of the polymer or disruption of the fibers during the deposition. To overcome these issues, low-pressure cold spray equipment has been used for the experimental campaign shown in this paper. Different coatings were obtained by using nitrogen as the carrier gas and different sets of pressure and standoff distance. Optimization of the process parameters, including the stratification of the laminate, has been carried out. Results of an initial study of the feasibility of the process and the influence of the different chosen spray conditions are exposed. In particular, the bonding mechanisms of steel powders and their morphology are discussed.

中文翻译：

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通过冷喷涂在复合材料上沉积钢粉的可行性

摘要研究了用冷喷涂技术在玻璃纤维增​​强聚合物 (GFRP) 上沉积钢粉。当使用高强度和致密粉末（如钢）时，由于聚合物的过度侵蚀或沉积过程中纤维的破裂，复合材料的金属化仍然具有挑战性。为了克服这些问题，本文所示的实验活动使用了低压冷喷涂设备。通过使用氮气作为载气和不同组的压力和间隔距离来获得不同的涂层。已经进行了工艺参数的优化，包括层压板的分层。该过程的可行性和不同选择的喷雾条件的影响的初步研究结果已公开。特别是，