Abstract
In order to explore the tribological potential of dual-phase (DP) steel as a wear-resistant material, the wear and friction characteristics of this steel, which consists of soft ferrite and hard martensite phases, was investigated. A low-carbon (0.11% C) steel was subjected to three different annealing heat treatments in order to develop different martensite percentages and morphologies, i.e., island types, a bulky and interconnected network, and fibrous (fine, needle-like), respectively. Dry reciprocating wear tests were performed under atmospheric conditions of 25 °C using a pin-on-disk apparatus at different loading conditions ranging from 18.9 N to 43.6 N and at a constant sliding velocity of 0.22 m/s. The lowest wear rate was obtained for the DP steel with an ~87% volume fraction (V F ) of martensite, reflecting the effect of hardness imparted by the increasing amount of martensite, which is a hard and load-bearing phase, while the highest wear rate was for the DP steel with a ~36% martensite V F . The analysis of the surface, subsurface and wear debris of specimens using a scanning electron microscope (SEM) showed that the wear mechanism was mainly mild oxidative wear. The friction and wear rate of the steels are explained with respect to the microstructure and the wear mechanism.
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.
