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Abrasion resistance of lamellar graphite iron: Interaction between microstructure and abrasive particles
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0003-2698-5445
Swerea SWECAST, Jönköping, Sweden.
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0002-7527-719X
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0003-0899-8939
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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
Elsevier, 2018. Vol. 120, p. 465-475
Keywords [en]
Lamellar graphite cast iron; Abrasion resistance; Scratch test; Microstructure; Pearlite deformation
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:hj:diva-38473DOI: 10.1016/j.triboint.2017.12.046ISI: 000428102900046Scopus ID: 2-s2.0-85041480396OAI: oai:DiVA.org:hj-38473DiVA, id: diva2:1173419
Available from: 2018-01-12 Created: 2018-01-12 Last updated: 2019-02-15Bibliographically approved

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Ghasemi, RohollahGhassemali, EhsanSalomonsson, KentJarfors, Anders E.W.

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