Effect of animal slurry on carbon structural S235JR steel at 303 K

Abstract

Construction materials arestill exposed to corrosion. Slurry is a mixture of dung and urine. The aggressive corrosive constituents in slurry are urea, uric acid, naturally excreted chloride and as well as ammonia or ammonium salts. Corrosion tests show that the tested steel in animal slurry as a corrosive environment is characterized through a continuous corrosion process, which measure may be surface roughness. In practice roughness parameters for every of the research times can be used to determine the size of steel corrosion. Lowcarbon steel is often used as a construction material for agricultural equipment. One of the most important factors of constructional materials is corrosion resistance, first of all in demanding animal environment. Equipment with carbon steel can be easy built by welding quickly at a low price, but the bigest problem in aggressive environment is corrosion protection. The purpose of this article is to investigate corrosion resistance in different time (48, 96, 144, 192, 240, 288, 336 hours), using weight loss and profile roughness parameters of structural steel in grade S235JR in natural animal slurry at 303 K.

Effect of Animal Slurry on Carbon Structural S235jr Steel at 318 K

“…Analyzing the corrosion rate determined both in mm per year (Figure 4) as well as gram per m 2 (Figure 5), similar as in paper [28,29], different angles of the curve were observed. It was depended on the time of steel soaking in animal slurry at temperature 318 K.…”

Advantages and Disadvantages of Various Uncertainty Assessment Methods in Material and Technological Predictive Models

“…The above considerations may be useful as guidelines for analyzes in scientific or industrial applications, including when examining the properties of the surface layer [54], corrosion resistance [55,56] or analyzing incomplete or uncertain structural data [57,58]. It may also be very useful in predicting the properties of living organisms [59,60], for which the description is often incomplete, uncertain and dominated by individual traits.…”

Sample Preparation Methodology of the AL2O3 Surface Layers for Self-Lubricating Sliding Pair

“…The results presented in this article may be useful in industrial in order to improve the durability of machine parts by strengthening the surface layer [15,16], modifying its functional properties [17,18] and wear resistance [19,20]. It can also be used to improve the techniques enhancing the resistance of parts working in chemically aggressive environments [21,22], thermomechanically loaded [23] and exposed to biocorrosion [24][25][26].…”