Abstract
The present work analyzes the effect of V, W, and different Cr contents on the microstructure and wear behavior of a high chromium white cast iron. The alloys were characterized by scanning electron microscopy and X-ray diffraction. Results show that the simultaneous addition of V and W promoted the formation of the W6C and VC carbides. This modification allowed obtaining a predominantly martensitic matrix in the as-cast alloyed irons. Wear test showed a decrease in the volume losses for the V and W alloyed irons in the as-cast condition attributed to VC and W6C carbides in the microstructure and the transformation to martensite, increasing the hardness. After destabilization, carbide precipitation and matrix transformation produced a secondary hardening in 11wt%Cr alloys. However, after destabilization, V and W alloyed irons with 17wt%Cr showed a decrease in hardness due to excessive C reduction in the austenitic matrix transformed to low-carbon martensite.
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The data that support the findings of this study are available from the corresponding author upon request. In addition, some data are provided as supplementary material.
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Acknowledgments
The authors are very grateful to the Universidad Michoacana de San Nicolás de Hidalgo for supporting this research. One of the authors, Adán Zárate, also acknowledges CONACyT for the scholarship during his master's degree studies.
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Guerra, F.V., Zárate-Rangel, A., Bedolla-Jacuinde, A. et al. Microstructural effect and wear performance of high chromium white cast iron alloyed with V, W, and different Cr contents. MRS Advances 7, 1017–1021 (2022). https://doi.org/10.1557/s43580-022-00367-3
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DOI: https://doi.org/10.1557/s43580-022-00367-3