It is very important to study the corrosion resistance characteristics and corrosion mechanism of agricultural aluminum forgings, which are directly related to the durability and life of aluminum forgings in agricultural environment.
First of all, aluminum forgings usually face a variety of corrosive media, including acids, alkalis, salts, etc. Therefore, in the study of corrosion resistance, it is necessary to evaluate these corrosive media. For different types of corrosive media, different test methods can be used, such as electrochemical corrosion test, immersion test, etc. Through these tests, it is possible to evaluate the corrosion resistance of aluminum forgings in various corrosive media, and select suitable materials and protective measures.
Secondly, studying the corrosion mechanism of aluminum forgings is the key to understand and control the corrosion process. The corrosion mechanism of aluminum forgings mainly involves two aspects: one is the electrochemical reaction process of aluminum in the corrosive medium, and the other is the physical and chemical action of the corrosive medium on the aluminum surface. In the process of electrochemical reaction, aluminum will undergo oxidation, reduction and ion transfer reactions, resulting in corrosion; The physical and chemical action of the corrosive medium can accelerate the corrosion process of aluminum.
Surface analysis techniques, such as scanning electron microscope (SEM) and energy dispersive spectrometer (EDS), can be used to observe the corrosion morphology and composition changes on the surface of aluminum forgings. In addition, electrochemical methods such as polarization curve and AC impedance can be used to study the electrochemical behavior and corrosion rate of aluminum forgings in corrosive media.
It should be noted that the corrosion resistance characteristics and corrosion mechanism of agricultural machinery aluminum forgings may be affected by environmental factors, such as humidity, temperature, soil composition, etc. Therefore, it is necessary to fully consider the influence of the actual application environment in the research process, and optimize the materials and processes combined with the test results to improve the corrosion resistance and service life of agricultural machinery aluminum forgings.
