Influence of Chromium Content and Stabilization on Tribocorrosion of Ferritic Stainless Steel

Brazilian Tribology: origin, status quo and future perspectives

“…Initially, the effect of crystallographic texture and niobium stabilization on the corrosion resistance of ferritic stainless steel was studied [97], quickly giving way to a complete study encompassing abrasion-corrosion of stainless steels [98][99][100], which included the proposition of a new versatile instrument for the analysis of micro-abrasion corrosion [101] and methodological improvements [102][103][104]. Given the importance of the theme, its scope was naturally extended to sliding-corrosion (tribocorrosion) [105,106] and culminated with the application of the knowledge acquired applied to the optimization of life and sustainability of concrete mixer drums [107,108] The tribology of rolling mills rolls was another relevant contribution of LTM. The effects of normal force, temperature, counter-body nature, environment and pre-oxidation on the wear mechanisms acting in hot rolling mills rolls were extensively evaluated.…”

Tribocorrosion in Ferritic Stainless Steels: an Improved Methodological Approach

“…where S is the synergy ((expressed in mass variation, e.g., mg.min -1 ), given by the difference between the total degradation in situ from tribocorrosion tests, represented by T , and the sum of the degradation by mechanical wear, from the sliding tests, plus the degradation by corrosion tests, from the corrosive tests, denoted by W and C, respectively. Ponthiaux 23 also considered two different areas to quantify the synergistic effect and this same methodology, using the Equation 2, was successfully used to evaluate the effect of chromium content and stabilization on tribocorrosion of ferritic stainless steel 24 .…”