2011
DOI: 10.1016/j.wear.2010.11.047
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Microstructure of high (45wt.%) chromium cast irons and their resistances to wear and corrosion

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Cited by 100 publications
(47 citation statements)
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“…However, it was determined that even though a low percentage of retained austenite could improve the hardness values, it could negatively affect the wear resistance, as it can be seen for the samples subjected to destabilization followed by cooling in air and subsequently overcooled in CO 2 . This behavior could be due to the increase of carbides without enough matrix support [10], leading to a reduced toughness, which resulted from brittle carbides. Therefore, the carbides can be more easily removed and cracked during wear.…”
Section: Figmentioning
confidence: 99%
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“…However, it was determined that even though a low percentage of retained austenite could improve the hardness values, it could negatively affect the wear resistance, as it can be seen for the samples subjected to destabilization followed by cooling in air and subsequently overcooled in CO 2 . This behavior could be due to the increase of carbides without enough matrix support [10], leading to a reduced toughness, which resulted from brittle carbides. Therefore, the carbides can be more easily removed and cracked during wear.…”
Section: Figmentioning
confidence: 99%
“…Therefore, the microstructure must present a tough matrix and high volume fraction of hard chromium carbides [9,10], such as a high carbon hard martensite matrix hardened by secondary carbides, because retained austenite reduces the hardness which might lead to a decrease in the abrasion resistance.…”
Section: Introductionmentioning
confidence: 99%
“…Tang et al observed that high chromium white iron (45 wt% chromium) including 4% C has a duplex structure consisting of a dark core and a lighter layer or shell. They reported that the core is M 7 C 3 and the lighter shell is M 23 C 6 [20]. Lin et al applied wavelength dispersive spectrum analysis to Fe-Cr-C alloys and found that content of M 23 C 6 phase is lower than M 7 C 3 phase [21].…”
Section: Resultsmentioning
confidence: 99%
“…Esto contribuye al aumento de la fracción de volumen de los carburos con el aumento de la concentración de elementos formadores de carburos, tales como Cr. Se determinó que la formación de carburos primarios aumentaba la dureza y contribuía a la resistencia al desgaste [23]. Zhang and Farrar [24] apunta hacia el efecto del manganeso como promotor de ferrita acicular, y en los contenidos obtenidos en esta investigación se puede inferir que influye notablemente sobre la resistencia al desgaste, lo cual es también reportado por Surian et al [25].…”
Section: Comportamiento De La Resistencia Al Desgaste Entre Depósitosunclassified