Slurry-erosive wear and wear product analysis using a SS430 propeller

The primary aim of this paper was to investigate the influence of specific independent wear variables on slurry erosive wear using a AISI 430 stainless steel (SS430) 32 mm diameter propeller. The utilization of the statistical design of the experiment enabled the author to collect and analyze erosive wear data to indicate the extent to which a higher understanding of the complex mode/mechanism of slurry - erosive wear should be further explored. The results showed that all of the variation of erodent types, slurry concentration, rotational speed, test duration have effects on both weight loss and pot bulk rising temperature rather differently. The particle morphological characteristics and eroded worn surface analysis showed that the dominated wear mechanism in the SiO2 slurry erosive wear case was primarily from crack propagation due to micro surface fatigue. On the other hand, the wear mechanism in the SiC slurry case by observation of the particle morphology and worn surface demonstrated that it was due to extreme micro fatigue. Plowing and small size wear particle detachment took place in the SiC slurry.

Automated summary

This paper investigated the influence of specific independent wear variables on slurry erosive wear using AISI 430 stainless steel propeller. The results showed that various factors have different effects on weight loss and temperature rise, with the wear mechanisms being mainly crack propagation in SiO2 slurry and extreme micro fatigue in SiC slurry.