Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B<sub>4</sub>C-Added Materials Produced through Powder Metallurgy

Abstract

The present study makes use of two distinct production methods. The first method involves producing 1010 steel-based materials containing SiC, MgO, H 3 BO 3 , and B 4 C (wt%10 -wt%30) with varying weights through powder metallurgy. This step was followed by hot pressing. In the second group, after all the chemicals were stirred, 20 ml of epoxy and epoxy hardener were added to the mixture. Then, the mixture was set aside to harden. XRD and SEM-EDS analyses were conducted on the mixture to observe the morphological impacts. Furthermore, friction coefficient values of the materials were also identified following wear tests under varying weights. The XRD analyses revealed the phase structures of Fe 3 C, SiC, MgO, H 3 BO 3 , B 4 C, and Fe 2 O 3 . As for the SEM-EDS analyses, they concluded the surface appearance of S60 and S55B20, the hot-pressed materials, dependent on liquid phase sintering. SEM of epoxybased S60E20 and S55B20E20 revealed white spherical structures and a flat matrix structure with shallow surface holes. In the pin-on-disc wear experiment, the friction coefficient value was reduced with the addition of SiC, MgO, and H 3 BO 3 (S60) to 1010 steel (S100). By adding various amounts of B 4 C, the friction coefficient was reduced even further, resulting in the improvement of wear properties.

Microstructural evaluation and wear behavior of B4C particle reinforced TiO2-SiO2-ZnO compound by hot-pressing method

“…The main reason for this at the relevant wear load was thought to be the formation of lubricating oxide compounds during the wear test according to the B 4 C addition. Same observations were reported in the literature that there was a decrease in the friction coefficients generally depending on the B 4 C content [37,47]. Because it was reported that the B 2 O 3 compound was formed as a result of the contact of the B 4 C with air during wear tests.…”

“…It must be stressed that the decrease in peak intensities in the XRD results due to B 4 C addition and thus the decrease in crystallinity was not supported by the SEM results due to liquid phase sintering. A similar sintering effect due to the production method was reported on the Silicon Nitride films, implant materials of 316L and 1010 steel-based materials containing SiC, MgO, H 3 BO 3 and varying B 4 C amounts in [36,37,40] respectively.…”

“…As can be seen from the SEM images under 15 N wear load, it can be seen that the wear width, the number of parts broken off and its gaps increase compared to the wear behavior under 10 N wear load. For this reason, the weight loss was smaller at 10 N but larger at 15 N wear load [37,47].…”

“…In addition, the width of the wear marks and the number of pits formed on the wear surface also differed for those materials. These appearance differences on the surface as a result of wear caused the weight loss data (figure 7, figure 8) to be variable [37,[43][44][45].…”

“…SEM image of Ti35Si15Zn20B30 material was given in figure 4(d). There were two different phase structures in two colors in common in figure 4(d), the grain boundaries were not clear and complex boundaries with a heterogeneous structure were formed as in all former materials [36,37]. General and specific ( * ) point EDS analysis results in figure 4(d) were given in figures 4(e) and 4(f), respectively.…”