| Mıcrostructures And Mechanıcal Propertıes Of Steel Shots For Surface Cleanıng
In this study, it was aimed to examine the mechanical and microstructural properties of low carbon steel shot blasting materials. In this manner, alloys with different carbon, manganese and silicon ratios were selected to be used in the experiments. Several physical and chemical analyses such as density measurement, chemical spectrum analysis, durability (life) test and microhardness as well as optical microscopy examinations of the microstructure were carried out on shot blasting.
The density of the steel shot was found to be around 7,2 g.cm-3. The hardness of the samples was increased whereas the durability (life) properties were decreased with increasing carbon and manganese content. It was found that the small changes in the quantities of the alloying elements did not significantly altered the microstructure of the alloys in which the bainitic structure was found to be the dominant phase. The minimum durability and the maximum hardness achieved were % 69 and 490 HV for 0,17 % C, 0,14 % Mn, 0,30 % Si also the maximum durability and the minimum hardness achieved were % 85 and 385 HV for 0,08 % C, 0,95 % Mn, 0,13 % Si alloys respectively.
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