Study on Property of Fe₃Al Alloyed by Mn, Cr and V

Abstract:

The effects on property of Fe3Al-based alloy adding 1.0at.%Mn,5at.%Cr,0.5at.%V have been studied. Alloys were smelted in a vacuum arc furnace and heat treated in box furnace under atmosphere. The tensile property test and hardness measurement indicate that Cr and V both can improve the room temperature ductility of Fe₃Al-based alloy effectively, the effect of micro V to the ductility is correspond to the effect of 5at.%Cr, the Fe3Al alloyed by V has higher tensile strength and yield strength, the effect of 1.0 at.%Mn on the property of alloy is not obvious. The effects of various elements on Fe3Al-based alloy ductility are analyzed according to the electronegativity different of between the three atoms and Fe/Al atoms. Microstructure analysis shows that the reason of V improving the strength is the effect on solution strengthening and the second phase strengthening.

• Periodical: Applied Mechanics and Materials (Volumes 246-247)
• Pages: 1052-1056
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.246-247.1052
• Online since: December 2012
• Authors: Yan Jing Wang, Le Liu, Ji Jie Wang
• Keywords: Alloying, Electronegativity Different, Fe₃Al

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