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Microstructure, Mechanical Properties and Wear Resistance of Fe-Al Based Alloys with Various Alloying Elements

Published online by Cambridge University Press:  26 February 2011

Han-Sol Kim
Affiliation:
Advanced Materials R&D Center, Korea Institute of Industrial Technology, #994–32, Dongchun-dong, Yeonsu-ku, Incheon 406–254, South Korea
In-Dong Yeo
Affiliation:
Advanced Materials R&D Center, Korea Institute of Industrial Technology, #994–32, Dongchun-dong, Yeonsu-ku, Incheon 406–254, South Korea
Tae-Yeub Ra
Affiliation:
Advanced Materials R&D Center, Korea Institute of Industrial Technology, #994–32, Dongchun-dong, Yeonsu-ku, Incheon 406–254, South Korea
Won-Yong Kim
Affiliation:
Advanced Materials R&D Center, Korea Institute of Industrial Technology, #994–32, Dongchun-dong, Yeonsu-ku, Incheon 406–254, South Korea
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Abstract

We report on microstructure, mechanical properties and wear resistance of Fe-Al based alloys with various alloying elements. The microstructures were examined using optical and scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscope (EDS). Two types of alloys were prepared using vacuum arc melting; one is Fe-28Al based alloys (D03 structured) with and without alloying elements such as Mo and Zr. The other one is Fe-35Al based alloys (B2 structured) produced with same manner. For both types of alloys, equiaxed microstructures were observed by the addition of Mo, while dendritic structures were observed by the Zr addition. These microstructural features were more evinced with increasing the content of alloying elements. Concerning the mechanical properties and wear resistance, Fe-35Al based alloys with or without Mo addition superior to Fe-28Al based alloys especially in the high temperature region.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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References

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