2010•材料科学与工程：中英文版Requires access
Improvement to the Morphology of Carbides in Low Alloy White Cast Iron
Deliang Meng, Gui-Rong Peng, Guirong, Peng, Jianhua, Liu, Ruijun, Zhang
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Abstract
Aimed at the problem that eutectic carbides in low alloy white cast iron are distributed with reticulation shape, the effect of heat treatment on morphology of eutectic carbides in low alloy white cast iron after deformation was studied. The results showed that the morphology and distribution of eutectic carbides in the cast iron were improved by high temperature heat treatment and hot deformation, and the morphology of eutectic carbides is changed from continuous reticulation into strip and block. When the cast iron after 20% hot deformation is treated at 970 ℃ for 3 h, stripy and blocky carbides will replace reticular eutectic carbides, and the impact toughness is improved by 88.56%.