Abrasion resistance of lamellar graphite iron: Interaction between microstructure and abrasive particlesShow others and affiliations
2018 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 120, p. 465-475Article in journal (Refereed) Published
Abstract [en]
This study focuses on abrasion resistance of Lamellar Graphite Iron (LGI) using microscratch test under constant and progressive load conditions. The interactions between a semi-spherical abrasive particle, cast iron matrix and graphite lamellas were physically simulated using a sphero-conical indenter. The produced scratches were analysed using LOM and SEM to scrutinise the effect of normal load on resulting scratch depth, width, frictional force, friction coefficient and deformation mechanism of matrix during scratching. Results showed a significant matrix deformation, and change both in frictional force and friction coefficient by increase of scratch load. Furthermore, it was shown how abrasive particles might produce deep scratches with severe matrix deformation which could result in graphite lamella's coverage and thereby deteriorate LGI's abrasion resistance.
Place, publisher, year, edition, pages
2018. Vol. 120, p. 465-475
Keywords [en]
Abrasion resistance, Lamellar graphite cast iron, Microstructure, Pearlite deformation, Scratch test, Abrasion, Abrasives, Deformation, Friction, Graphite, Iron, Tribology, Wear resistance, Abrasive particles, Deformation mechanism, Friction coefficients, Matrix deformation, Micro-scratch test, Cast iron
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33401DOI: 10.1016/j.triboint.2017.12.046Scopus ID: 2-s2.0-85041480396OAI: oai:DiVA.org:ri-33401DiVA, id: diva2:1188764
Note
This research was supported by the KK-Foundation under CompCAST[GNR. 20100218] and Vinnova under FFI-program [GNR. 2012_1372.4.2]. MAN Diesel & Turbo Denmark, Swerea SWECAST, Volvo Powertrain,Nya Arvika Gjuteri AB and SKF Mekan AB are greatly acknowledgedfor their support
2018-03-082018-03-082020-05-05Bibliographically approved