Abstract
The aim of the study was to conduct dry sliding tests on the designed hypereutectoid steels with the controlled contents increase of carbon, chromium, and manganese. Chromium and manganese were used to balance the changes related to the higher secondary carbides’ precipitation in the chemical composition of the matrix. Samples were investigated by the use of the block on disk friction method under the load of 100 N. The duration of each test was 2000 s with the wear track length approx. 500 m. The samples were investigated in the as-cast state and after hot plastic deformation. Two sets of four samples were prepared from the ingots and plastically deformed material. The heat treated (quenched and tempered) 100Cr6 steel was used as the counter-sample, with a new counter-sample used for each test. The obtained results show a decrease of the average friction coefficient for samples after plastic deformation. The phenomena that influenced this effect the most, observed in the alloy with the higher concentration of alloying elements, were grain boundary net defragmentation of secondary carbides and the elimination of Widmannstaten needles. The main wear mechanisms occurring during the tribological tests were sliding wear and material spalling.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
