Effects of Mo and Zr on Microstructure, Mechanical Properties and Wear Resistance of Fe-Al Based Alloys

Effects of Mo and Zr on Microstructure, Mechanical Properties and Wear Resistance of Fe-Al Based Alloys

In this work the microstructure, mechanical properties and wear resistance of Fe-Al based alloys with various alloying elements were studied. The microstructures were examined by optical and scanning electron microscopy (SEM) equipped with an energy dispersive X-ray spectroscope (EDS). Two types of...

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Veröffentlicht in:Journal of materials science & technology 2008-05, Vol.24 (3), p.309-312
Hauptverfasser: Yeo, I D, Ra, T Y, Kim, H S, Bang, H J, Yoo, Y G, Kim, W Y
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creator Yeo, I D
Ra, T Y
Kim, H S
Bang, H J
Yoo, Y G
Kim, W Y
description In this work the microstructure, mechanical properties and wear resistance of Fe-Al based alloys with various alloying elements were studied. The microstructures were examined by optical and scanning electron microscopy (SEM) equipped with an energy dispersive X-ray spectroscope (EDS). Two types of alloys were prepared by vacuum arc melting. One is Fe-28Al based alloys (DO3 structured) with and without alloying elements such as Mo and Zr. The other one is Fe-35AI based alloys (B2 structured) produced with the same manner. For both types of alloys, Mo addition had found to exhibit an equiaxed microstructure, while dendritic structure was observed to show the effect of Zr addition. These microstructural features were more evinced with increasing content of alloying element. Concerning the mechanical properties and wear resistance, Fe-35Al based alloys were superior to Fe-28Al based alloys over the whole temperature range investigated.
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