Effect of Abrasive Soil Mass Grain Size on the Steel Wear Process

Abstract

This article analyses the effect of the size of abrasive soil mass grains on the steel wearing process. The study examined Hardox 500 steel used for working parts exposed to abrasive wear. Wear tests were performed under laboratory conditions using the "spinning bowl" method. The study was carried out using natural soil abrasive mass, in which three grain size fractions were distinguished: 0.05-2 mm -sand, 2-16 mm -gravel, 0.05-16 mm -sandy gravel. Steel wearing tests were completed for each fraction as well as for their mixes. The mixes were prepared using one additional fraction with a grain size below 0.05 mm described as dust and loam. The highest wear impact was recorded for the abrasive mass of a gravel (75 %) and dust-loam (25 %) mix. The wear was higher than that obtained for 100 % gravel. The addition of dust and loam had a different effect on the wear impact of sand. A 25 % addition of dust and loam to sand significantly reduced the abrasive wear of samples in comparison to the application of 100 % sand. The abrasive mass of dust and loam resulted in the lowest mass loss of the examined steel. Based on the results obtained from the wearing process in natural abrasive masses, three types of phenomena of steel wear in soil mass could be distinguished, i.e. by micro-cutting, fatigue wear and ploughing. The type of prevailing wear for different mixes of soil fractions depends on the volumetric content of a given fraction in the composition of soil mass. The wear intensity of the experimental steel is higher in mixes of soil fractions than for the particular soil fractions.

Wear Properties of Nitride-Bonded Silicon Carbide under the Action of an Abrasive Soil Mass

“…Mass wear as a function of friction distance for materials is well described by linear equations, regardless of the soil type ( Figure 7 , Figure 8 and Figure 9 ). As in other studies [ 19 , 25 , 26 , 27 , 28 , 29 ], soil grain size distribution has a fundamental effect on the mass wear of the materials under study ( Table 5 ). The wear of nitride-bonded silicon carbide in abrasive soil mass also depends on the soil grain size distribution.…”

Experimental Study of Abrasive, Mechanical and Corrosion Effects in Ring-on-Ring Sliding Contact

“…Various surface treatments are also used to create the desired properties of the cooperating surface layers [ 16 , 17 , 18 ]. Tests are also conducted in the scope of assessing the wear of elements in the abrasive mass [ 19 ]. Chosen research in the field of steel wear evaluation is presented in Table 1 .…”

Effect of Dilution on Microstructure and Slurry Abrasive Wear Behaviour of Ni-Cr-Mo-W Coating on 304 Stainless Steel Deposited by Synergic Pulsed Gas Metal Arc Welding

“…Ploughing can also be observed on the worn-out surfaces owing to silica particles and detached metal particles' role in subsequent wear loss [8]. The microcutting and ploughing are common phenomenon for wear under the abrasive environment [7,[39][40]. Therefore, main wear mechanism was abrasive wear.…”

“…A multi-cycle surface fatigue was also witnessed on the surface. It took place due to blasting of large size debris on the soft surface [39], which were produced due to deep cutting. It made material to chip off from the surface.…”