TY - JOUR
T1 - A pin-on-disk wear map of rail and wheel materials from different standards
AU - Mesa G., Dairo H.
AU - Vásquez-Chacón, Irvin Alari
AU - Gómez–Guarneros, Mario Alberto
AU - Sanchez-Tizapantzi, Pedro
AU - Gallardo-Hernández, Ezequiel Alberto
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/1/15
Y1 - 2022/1/15
N2 - Wheel and rail materials are exposed to a large number of factors that affect their wear-resistant performance such as, large contact pressures, sliding speeds, high temperatures, material degradation by natural and artificial contaminants, etc. This directly affects the maintenance operations, so, an accurate wear prediction is required. Wear maps are an important tool to predict and identify wear regimes that impact maintenance schedules and consequently cost reduction. This work aimed to develop wear maps for a 115RE rail material and an ER8 wheel material, which are materials used in railways systems in Mexico, as well as identify the wear regimes and wear mechanisms replicating the wheel-rail interface conditions. Metallographic analysis and hardness tests were carried out for both materials. Wear tests were carried out by using a pin-on-disk tribometer. The resulting wear maps showed that a catastrophic wear regime occurs at medium sliding speed and low contact pressure values for the wheel. On the other hand, for rail, catastrophic wear regime occurs at high sliding speed and low contact pressure values.
AB - Wheel and rail materials are exposed to a large number of factors that affect their wear-resistant performance such as, large contact pressures, sliding speeds, high temperatures, material degradation by natural and artificial contaminants, etc. This directly affects the maintenance operations, so, an accurate wear prediction is required. Wear maps are an important tool to predict and identify wear regimes that impact maintenance schedules and consequently cost reduction. This work aimed to develop wear maps for a 115RE rail material and an ER8 wheel material, which are materials used in railways systems in Mexico, as well as identify the wear regimes and wear mechanisms replicating the wheel-rail interface conditions. Metallographic analysis and hardness tests were carried out for both materials. Wear tests were carried out by using a pin-on-disk tribometer. The resulting wear maps showed that a catastrophic wear regime occurs at medium sliding speed and low contact pressure values for the wheel. On the other hand, for rail, catastrophic wear regime occurs at high sliding speed and low contact pressure values.
KW - Pin on disk
KW - Wear map
KW - Wear rate
UR - http://www.scopus.com/inward/record.url?scp=85117827779&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2021.131021
DO - 10.1016/j.matlet.2021.131021
M3 - Artículo
AN - SCOPUS:85117827779
SN - 0167-577X
VL - 307
JO - Materials Letters
JF - Materials Letters
M1 - 131021
ER -