Chapters authored
Biotribology of Mechanically and Laser Marked Biomaterial
The purpose of present work is to study the biotribological behavior of a mechanically and laser marked biomaterial. Sliding wear tests were conducted on ASTM F139 austenitic stainless-steel specimen, with polypropylene and AISI 316 L austenitic stainless-steel balls, as counterbodies. During wear experiments, a liquid chemical composition was continuously fed between the specimen and the ball. The coefficient of friction acting on the tribological system “specimen – liquid chemical composition – ball” and the wear volume of the wear craters were calculated, and results were analyzed. The results have shown that the biotribological behavior of ASTM F139 austenitic stainless steel was influenced by mechanical or laser marking process, and its wear resistance was dependent on the kind of counterbody.
Part of the book: Corrosion
Analysis of the Effect of Heat Treatment Conditions of a Ferritic Stainless Steel on Residual Stresses and Tribological Behavior
In recent years, the scientific community has shown a great interest in the study of the wear performance of metallic materials under different test conditions, together with the measurement of residual stresses. Thus, the objective of the present work was to analyze the effect of heat treatment on residual stresses and tribological behavior of P410D ferritic stainless steel. The results showed that, with the increase in hardness of the material—derived from different heat treatment conditions, the resistance to micro-abrasive wear of P410D ferritic stainless steel increased, characterized by a decrease in wear volume. The residual stresses reported were “tractive”; additionally, it was observed that the lowest residual stresses values were related to the lower wear volumes values.
Part of the book: Engineering Principles