Characterization of Cr_2O_3 Adhesion Properties by Destructive Testing in Accordance with the APS Metal Spraying Process Parameters

摘要

This paper aims to study the correlation between some parameters of the metalspraying by APS process and the level of chromium oxide (Cr_2O_3) adhesion to the base material. Among the properties of the layers deposited by APS are those of wear resistance.In the context of evaluating the coatings properties and understanding aspects related to the coat structure phenomena, the purpose of the experiment presented here is to characterize the adherence of thermal sprayed coating Cr_2O_3. Because, the main problem of metalspraying layers is adhesion to the base material, there were subjected to tensile testing 2 samples made by 1C45 steel, which were previously bonded with an epoxy glue.The adhesion of the deposited layer on the basic material is important for ensuring the quality of products. The results show that the quality of surfaces and the existence of accidental defects at the interface lead to a decrease of adherence.