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| THE MICROSTRUTURE AND COMPRESSIVE PROPERTIES OF ARC–MELTED FeNb ALLOYS |
| LÜ Baochen, TAN Lin , XUE Weihua, SHI Haifang, REN Xin, LI Heliang |
| Materials Science & Engineering School, Liaoning Science Technology University, Fuxin 123000 |
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Cite this article:
Lü Baochen TAN Lin XUE Weihua SHI Haifang REN Xin LI Heliang. THE MICROSTRUTURE AND COMPRESSIVE PROPERTIES OF ARC–MELTED FeNb ALLOYS. Acta Metall Sin, 2011, 47(8): 1032-1037.
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Abstract The microstructures and compressive properties of arc–melted Fe100−xNbx(x=6, 9,12, 15, 17) alloys, which are relevant to eutectic reaction (L → α–Fe+Fe2Nb), were investigated by SEM, XRD and test machine system 810 (TMS 810). The results showed that the microstructure of the ingot sample consisted of primary phase (α–Fe or Fe2Nb) and sub–micro–sized eutectics. Fe91Nb9 alloy had the best comprehensive properties with ultimate strength about 1.63 GPa, yield strength about 1.04 GPa and compressive strain ductility about 23%. For alloy Fe91Nb9, the substitution of Hf element for Nb element produced no observable effects on both the microstructure and the compressive mechanical properties; while the substitution of Y element for Fe element resulted in obvious change in the microstructure and dramatic deterioration in the mechanical properties.
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Received: 07 March 2011
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| Fund: Supported by Science Foundation for Doctorae Research from Liaoning Science Technology Universuty (No.09416) |
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