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Extrema of micro-hardness in fully pearlitic compacted graphite cast iron

Lacaze, Jacques and Moussa, Charbel and Thebault, Yannick and Guesser, Wilson Extrema of micro-hardness in fully pearlitic compacted graphite cast iron. (2020) International Journal of Cast Metals Research, The, 33 (4-5). 218-225. ISSN 1364-0461

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Official URL: https://doi.org/10.1080/13640461.2020.1832308

Abstract

For improving the mechanical strength of cast irons, a fully pearlitic matrix is sought by alloying with tin, copper and manganese. This applies in particular to the compacted graphite irons considered here. While average macro- and micro-hardness values were similar for the four fully pearlitic alloys under study, it was found that high copper and low tin content showed some very high maximum micro-hardness values, significantly higher than the corresponding mean. Such values may be seen as hard points in the material that would certainly impair machinability. Discussion of the reasons for these extreme values opens directions for further studies

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Universidade Do Estado De Santa Catarina - UDESC (BRAZIL)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Mines ParisTech (FRANCE)
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Deposited On:26 Mar 2021 08:55

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