Abstract
In this study, the effects of vanadium on the morphology and wear behavior of a eutectic Cr-Fe-C hardfacing alloy were discussed. The alloys tested contained different amounts of vanadium, ranging from 0 to 2.39 wt%. A fibrous V4C3 was found when the alloy contained 0.93 wt% vanadium. The addition of vanadium was found to decrease the fraction of eutectic M23C6 and increase the width of the interspaces between the eutectic cells. The DTA results revealed that V4C3 formed just before the eutectic α+M23C6 during solidification. The surface hardness was shown to increase with increasing vanadium content, which also caused the hardness deviation and wear loss to decrease; however, the addition of vanadium was not shown to affect the hardness of eutectic α+M23C6. The V4C3 could be scratched off during the wear test due to the increase in the width of the interspaces between the eutectic cells; therefore, the alloys that contained 0.93 and 2.39 wt% vanadium exhibited similar wear loss results.
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Lai, HH., Hsieh, CC., Lin, CM. et al. Effects of vanadium content on the microstructure and dry sand abrasive wear of a eutectic Cr-Fe-C hardfacing alloy. Met. Mater. Int. 22, 101–107 (2016). https://doi.org/10.1007/s12540-016-5470-6
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DOI: https://doi.org/10.1007/s12540-016-5470-6