Effects of Vanadium on Microstructure and Properties of a Fe-Cr-W-Mo-V Overlaying Alloy

Abstract:

A Fe-Cr-W-Mo-V overlaying alloy was prepared on Q235 steel by SMAW with different Fe-V powders added in electrode coating. Effects of vanadium on microstructure, hardness and wear resistance of the alloy were studied with SEM, OM, hardness and wear test. The results show that Fe-V powders content affects welding crack number, which increasing quickly at 0-2%(wt, as fellow), decreasing slowly at 2-20%, disappearing above 22%. With the increase of Fe-V, vanadium-rich carbides number increase, the grain size and hardness increase firstly then decrease above 2, at 20% gain the highest. Conversely, the wear loss decreases slowly first, then increases quickly above 2, wear resistance is the best at 20-22%.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 2048-2051
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.2048
• Online since: August 2013
• Authors: Yi Feng Xiao, Zhi Wei Hou, Fang Tang, Jian Xun Gong, Yue Hui He
• Keywords: Crack, Overlaying Alloy, Vanadium, Wear Resistance

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