Due to their unique long -range disorders and short -term nuclear regulations such as high hardness, outstanding corrosion resistance and wear resistance, amorphous alloys have exceptional features. [1]Present [2]. They make these properties very promising for applications in demanding environments, including building materials that are exposed to hard conditions such as aggressive corrosive environments and mechanical wear [3]Present [4].
However, these structural features also lead to certain disadvantages. For example, the lack of suitable slip systems and crystalline defects limits the manufacturing size and the deforming skills of the amorphous alloys [5]. This becomes particularly significant in marine buildings, in which the structural integrity and the ability to deform deformations are essential. Although the reduction of geometric restrictions on the production of amorphous coatings relieves size restrictions to a certain extent [6]Present [7]The problem of brittleness remains [8]Present [9]. As a result, the development of composite coatings, which have both excellent ductility and improved wear and corrosion resistance [10]Present [11]Present [12].
An effective approach to the production of composite coatings is the in-situ generation of nanocrystals in amorphous coatings using methods such as heat treatment [13]Present [14]Present [15]. This process can significantly improve the hardness and the wear resistance of the coatings [16]. However, this can also lead to an elementary segregation, which negatively influences the corrosion resistance of the coatings [17]Present [18]Present [19]. In addition, the fine grain limits of the nanocrystals generated may not hinder the spread of internal cracks effectively [20]thereby restrict the applicability of such composite coatings.
In contrast, adding a second phase for the production of composite coatings is a simpler and more economic method. By including the second phases with different properties, different advantageous performance features can be achieved. For example, add hard phases such as 316 l stainless steel [21] or copper [22]can significantly improve the duktility of the coatings, even if potentially disadvantaged their corrosion resistance and wear performance[23]. Conversely, there are hard ceramic particles like al2O3 [24] or b4C [25] Can have a positive impact on the wear -resistant and the hardness of the coatings and their corrosion resistance only affect minimally. However, the high melting points of ceramic particles often show primarily in particular form, which can lead to cohesion problems within the coatings [26]Present [27].
When coping with these challenges, it was found that tinX Made via reactive plasma spraying shows an excellent performance. During the process, titanium particles are subjected to a nitriction during the injection into a nitrogen -containing plasma jet. The high temperature promotes the in-situ formation of tinX through the reaction between almost molting ti and active nitrogen species. During the deposition, tinX Shows a measure of distribution that is comparable to which alloys with high ductility. However, it shows intrinsic ceramic properties, including high hardness and mechanical strength, during the solidification [28]Present [29]Present [30]. So tinX Optimizes the service of the coatings and ensures good cohesion, which makes it suitable for improving Fe-based amorphous coatings. Because of the uncontrollability of the canX It is important to investigate the optimal amount of addition to providing the theoretical guidelines for the associated research.
This study used reactive plasma spray technology to produce pure amorphous FE-base and composite coatings with different amounts of tinX on Q235 steel substrates. A balanced assessment of the mechanical and corrosion performance was carried out using micro-hard-tests, three-point bending tests, frictional tests and electrochemical corrosion tests. In addition, techniques such as X -ray Biffractometers (XRD), scanning electron microscope (SEM), energy -dissives spectrometer (EDS) and X -ray photoric spectron spectroscopy (XPS) were used to examine the structural features of the coatings in order to examine the influence of the tinX Addition and their amount in coating performance, which determines the optimal canX Addition value.