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Effect of particle characteristics on the two-body abrasive wear behaviour of a pearlitic steel
journal contribution
posted on 2016-05-15, 00:00 authored by B Narayanaswamy, Peter HodgsonPeter Hodgson, Hossein BeladiHossein BeladiThe specific wear rate and friction coefficient of a pearlitic microstructure subjected to different abrasive environments (i.e. SiC and alumina) were examined. A CSM high temperature pin-on-disc tribometer was used to simulate the two-body abrasive condition (i.e. the metallic surface abrading against the abrasive particles). The characteristics of the abrasive particles (i.e. particle size and density) revealed a significant impact on the amount of material loss. The specific wear rate of the pearlitic microstructure decreased with a reduction in the abrasive particle size, irrespective of the particle type. In addition, distinct particle deterioration mechanisms were observed during the abrasion process, which was largely determined by the abrasive particle size. Attrition, shelling and fracture were some of the dominant particle deterioration mechanisms occurring in both of the abrasive environments. SEM and EDX analysis on the wear debris displayed a unique metallic chip formation with respect to the particle type. Furthermore, the abrading efficiency (i.e. threshold level) of the abrasive particles was identified by means of interrupted abrasive wear tests. The dense packing nature of the alumina abrasive particles resulted in a significantly higher material removal rate than the SiC abrasive environment.
History
Journal
WearVolume
354-355Pagination
41 - 52Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0043-1648Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, ElsevierUsage metrics
Keywords
Science & TechnologyTechnologyEngineering, MechanicalMaterials Science, MultidisciplinaryEngineeringMaterials ScienceSpecific wear rateParticle characteristicsPacking natureFriction coefficientAbrasive wear testsMICROCHIPS MORPHOLOGYMETALLIC MATERIALSCARBON STEELGRIT SIZEMECHANISMSFRICTIONMICROSTRUCTUREMechanical Engineering
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