Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron

Abstract This study compares micro-abrasive wear in two kinds of grey cast iron. Classical lamellar cast iron with fully pearlitic matrix (FGL1) and lamellar micro-alloyed cast iron with phosphorus and boron (FGL2) are used. FGL2 has a fully pearlitic matrix reinforced by the hard phosphorus eutecti...

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Main Authors: Mohammed Mendas, Stéphane Benayoun
Format: Article
Language:English
Published: Tsinghua University Press 2018-12-01
Series:Friction
Subjects:
Online Access:http://link.springer.com/article/10.1007/s40544-018-0223-9
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author Mohammed Mendas
Stéphane Benayoun
author_facet Mohammed Mendas
Stéphane Benayoun
author_sort Mohammed Mendas
collection DOAJ
description Abstract This study compares micro-abrasive wear in two kinds of grey cast iron. Classical lamellar cast iron with fully pearlitic matrix (FGL1) and lamellar micro-alloyed cast iron with phosphorus and boron (FGL2) are used. FGL2 has a fully pearlitic matrix reinforced by the hard phosphorus eutectic phase. The microstructures of these two types of iron are mechanically characterized using nanoindentation tests. Vickers microindentation and microscratch tests are also performed on these iron samples. The indent and scratch images obtained via scanning electron microscopy were used to compare the scratch damage to the two kinds of iron. The friction coefficient is discussed in terms of applied load, indenter attack angle, and scratch damage. Nanoindentation tests show an improvement in graphite’s mechanical properties and an increase in the matrix hardness of the FGL2, relatively to FGL1. The same damage forms for both microindentation and microscratch testing were observed for the two iron samples. However, cracking of the hard phase is observed in FGL2. The results show that the scratching of the micro-alloyed iron (FGL2) leads to less matrix damage and to an extended microploughing wear mechanism. However, at low normal load, the reinforcement of the matrix can increase the friction coefficient.
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spelling doaj-art-6885c901b16d406eaa1a644d181a1a5d2025-08-20T03:06:13ZengTsinghua University PressFriction2223-76902223-77042018-12-017545746510.1007/s40544-018-0223-9Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast ironMohammed Mendas0Stéphane Benayoun1Laboratory of Rheology and Mechanics (LRM), Hassiba Benbouali University of ChlefLTDS, UMR CNRS 5513, Ecole Centrale de Lyon, University of LyonAbstract This study compares micro-abrasive wear in two kinds of grey cast iron. Classical lamellar cast iron with fully pearlitic matrix (FGL1) and lamellar micro-alloyed cast iron with phosphorus and boron (FGL2) are used. FGL2 has a fully pearlitic matrix reinforced by the hard phosphorus eutectic phase. The microstructures of these two types of iron are mechanically characterized using nanoindentation tests. Vickers microindentation and microscratch tests are also performed on these iron samples. The indent and scratch images obtained via scanning electron microscopy were used to compare the scratch damage to the two kinds of iron. The friction coefficient is discussed in terms of applied load, indenter attack angle, and scratch damage. Nanoindentation tests show an improvement in graphite’s mechanical properties and an increase in the matrix hardness of the FGL2, relatively to FGL1. The same damage forms for both microindentation and microscratch testing were observed for the two iron samples. However, cracking of the hard phase is observed in FGL2. The results show that the scratching of the micro-alloyed iron (FGL2) leads to less matrix damage and to an extended microploughing wear mechanism. However, at low normal load, the reinforcement of the matrix can increase the friction coefficient.http://link.springer.com/article/10.1007/s40544-018-0223-9grey cast ironindentationmicroscratchabrasivewear
spellingShingle Mohammed Mendas
Stéphane Benayoun
Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron
Friction
grey cast iron
indentation
microscratch
abrasive
wear
title Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron
title_full Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron
title_fullStr Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron
title_full_unstemmed Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron
title_short Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron
title_sort comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron
topic grey cast iron
indentation
microscratch
abrasive
wear
url http://link.springer.com/article/10.1007/s40544-018-0223-9
work_keys_str_mv AT mohammedmendas comparativestudyofabrasionviamicroindentationandmicroscratchtestsofreinforcedandunreinforcedlamellarcastiron
AT stephanebenayoun comparativestudyofabrasionviamicroindentationandmicroscratchtestsofreinforcedandunreinforcedlamellarcastiron