2020
DOI: 10.3390/ma13204678
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Dry Rolling/Sliding Wear of Bainitic Rail Steels under Different Contact Stresses and Slip Ratios

Abstract: This study aims to deeply understand the effect of contact stress and slip ratio on wear performances of bainitic rail steels. The results showed that the wear loss increased as the contact stress and slip ratio increased. Based on the surface damage morphology and microstructural analyses, it revealed that the rolling contact fatigue wear mechanism played a significant role under the low slip ratio, but the dominant wear mechanism transferred to the abrasive wear at the high slip ratio. Meanwhile, the bainiti… Show more

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Cited by 13 publications
(5 citation statements)
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References 43 publications
(76 reference statements)
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“…Similarly, Liu J. P. et al [4] discovered that the RCF wear mechanism was pivotal at a low slip ratio, but the dominant wear mechanism transferred to abrasive wear at a high slip ratio. Additionally, an increase in contact stress not only intensified plastic flows but also facilitated the propagation of cracks [4]. Wang H.H.…”
Section: Introductionmentioning
confidence: 95%
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“…Similarly, Liu J. P. et al [4] discovered that the RCF wear mechanism was pivotal at a low slip ratio, but the dominant wear mechanism transferred to abrasive wear at a high slip ratio. Additionally, an increase in contact stress not only intensified plastic flows but also facilitated the propagation of cracks [4]. Wang H.H.…”
Section: Introductionmentioning
confidence: 95%
“…Moreover, the crack propagation mechanism transitioned from solely intergranular to a combined mode of intergranular and transgranular propagation [3]. Similarly, Liu J. P. et al [4] discovered that the RCF wear mechanism was pivotal at a low slip ratio, but the dominant wear mechanism transferred to abrasive wear at a high slip ratio. Additionally, an increase in contact stress not only intensified plastic flows but also facilitated the propagation of cracks [4].…”
Section: Introductionmentioning
confidence: 97%
“…Такие бейнитные стали обладают лучшими механическими свойствами, чем бейнитные стали, термическая обработка которых включает непрерывное охлаждение. Но изотермическую обработку сложно применять на реальной производственной линии, особенно при производстве рельсов длиной 100 м, поэтому в работе [18] сосредоточились на изучении реального производства рельсов из бейнитных сталей, не содержащих карбидов, при непрерывном охлаждении.…”
Section: Introductionunclassified
“…Что касается бейнитной стали, исследования в основном были сосредоточены на сравнении износостойкости [26 -30] и контактной усталости при качении [14,18,27,31] при одинаковых условиях эксплуатации рельсов из бейнитных и перлитных сталей. Однако результаты очень противоречивы.…”
Section: Introductionunclassified
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