Adhesion and damage characteristics of wheel/rail using different mineral particles as adhesion enhancers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F21%3APU140884" target="_blank" >RIV/00216305:26210/21:PU140884 - isvavai.cz</a>
Result on the web
<a href="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S004316482100185X" target="_blank" >https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S004316482100185X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.wear.2021.203796" target="_blank" >10.1016/j.wear.2021.203796</a>
Alternative languages
Result language
angličtina
Original language name
Adhesion and damage characteristics of wheel/rail using different mineral particles as adhesion enhancers
Original language description
Mineral particles are used to improve adhesion between wheel and rail, but they might lead to severe damages of wheel and rail surfaces. To investigate the adhesion enhancement phenomena and damages of both wheel and rail induced by adhesion enhancers, the crushing strengths of four types of mineral particles (zinc oxide, sand, spinel and alumina) were firstly explored on a uniaxial compression tester. Then the adhesion, wear and damage of wheel/rail were studied on a twin-disc machine under the wet condition. The results show that the characteristic crushing strength was 24 MPa for zinc oxide, 40 MPa for sand, 51 MPa for spinel and 73 MPa for alumina, respectively. For particle with the lowest crushing strength (zinc oxide), the adhesion coefficient was the lowest (around 0.20). With the increase in the crushing strength to 40 MPa, the adhesion coefficient was improved to around 0.28. The particles with higher crushing strengths induced larger wheel/rail wear rates and severer rolling contact fatigue (RCF) damages on wheel and rail. The RCF cracks were large in lengths but small in angles, which finally developed into large pieces of material peeling off from the surface. Sand was the most suitable adhesion enhancer considering its good adhesion enhancement and the relatively mild damage on wheel/rail materials.
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
<a href="/en/project/LTACH19001" target="_blank" >LTACH19001: Study on key technologies and application strategies for wheel-rail friction management in rail transport</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
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
477
Issue of the periodical within the volume
8
Country of publishing house
CH - SWITZERLAND
Number of pages
12
Pages from-to
203796-203796
UT code for WoS article
000681064700001
EID of the result in the Scopus database
2-s2.0-85103603680