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Wheel/rail adhesion and damage under different contact conditions and application parameters of friction modifier

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU149774" target="_blank" >RIV/00216305:26210/23:PU149774 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S0043164823002533" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0043164823002533</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.wear.2023.204870" target="_blank" >10.1016/j.wear.2023.204870</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Wheel/rail adhesion and damage under different contact conditions and application parameters of friction modifier

  • Original language description

    Friction modifier (FM) is a newly developed third medium to control the service performance of wheel/rail. The wheel/rail performance is influenced by the wheel/rail contact conditions and FM application parameters. Therefore, the effects of FM application parameter and the wheel/rail contact parameters on the adhesion and damage behaviors of wheel and rail materials should be explored. In this study, the influences of application amount of FM, the wheel/rail contact stress and the creepage on the adhesion and damage behaviors were studied using a twin-disc machine. Results indicated that the increase in contact stress would reduce the wheel/ rail minimum adhesion coefficient and effective holding time of FM. The increase in the creepage would increase the adhesion coefficient and reduce the holding time. Under the wheel/rail contact stresses of 800 and 1100 MPa, the application of FM could reduce wheel/rail wear and damage. But under 1500 MPa, FM could cause serious rail surface damages. Moreover, the surface crack propagation process of rail mainly included three stages: initial stage, transition stage and rapid propagation stage. The "oil wedge effect" was the main mechanism for aggravating the surface damages of rail under 1500 MPa.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20301 - Mechanical engineering

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    WEAR

  • ISSN

    0043-1648

  • e-ISSN

    1873-2577

  • Volume of the periodical

    523

  • Issue of the periodical within the volume

    June

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    15

  • Pages from-to

    „“-„“

  • UT code for WoS article

    000982316500001

  • EID of the result in the Scopus database

    2-s2.0-85151349705