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The Charpy Impact Behavior of Fe3Al and Fe3Al-20 at % Mn Alloys

Published online by Cambridge University Press:  15 February 2011

J. N. Liu ,
W. Yan ,
J. L. Ma  and
K. H. Wu
J. N. Liu
Affiliation:
Department of Materials Engineering, Xian Institute of Technology, P. R. China
W. Yan
Affiliation:
Department of Materials Engineering, Xian Institute of Technology, P. R. China
J. L. Ma
Affiliation:
Department of Mechanical Engineering, Florida International University, Miami, FL 33199, USA
K. H. Wu
Affiliation:
Department of Mechanical Engineering, Florida International University, Miami, FL 33199, USA
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Abstract

A series of experiments were conducted to investigate the impact fracture behavior of Fe3Al and Fe3Al-20 Mn alloys. The results of this study indicated that: (i) The addition of Mn introduces an ordered Ll2-type phase in the Fe3Al-based alloys. On the other hand, the addition of Mn decreases the order parameter of the DO3 a phase, (ii) The total- impact energy of an Fe3Al alloy increases with the temperature at the low-temperature range (<600°C), then drops around 700°C, and finally increases again as the temperature further elevates, (iii) The trend of the variation of the impact energy of Fe3Al-20 at % Mn alloy with temperature is the same as that of the Fe3Al alloy, (iv) And the addition of Mn significantly improves the impact energy of the Fe3Al-based alloy, and changes the variation of the crack-growth energy with the testing temperature when the temperature is above 700°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 460: Symposium Z – High-Temperature Ordered Intermetallic Alloys VII , 1996 , 343
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Fuchs, G.E. and Stoloff, N.S., Acta Metall. 36 (1988), p. 1381.Google Scholar
2. Liu, C.T., Mckamey, C.G., and Lee, E.H., Scripta Metall Mater. 24 (1990), pp. 385–390.Google Scholar
3. McKamey, C.G. and Liu, C.T.,, Scripta Metall Mater. 24 (Nov. 1990), pp. 2119–2122.Google Scholar
4. Munroe, P.R. and Baker, I., Scripta Metall Mater. 24 (1990), pp. 2273–2278.Google Scholar
5. Morris, D.G., Acta Metallurgica Sinica (English edition), Series A: Physical Metallurgy & Materials Science 8 (1995), pp. 303–404.Google Scholar
6. Sun, Z.Q., Huang, Y.D., Yang, W.Y., Chen, G.L., “Microstructure engineering for optimizing the room temperature mechanical properties of Fe3Al-based aluminides,” MRS Symp. Proc. 288 (1993), pp. 885–890.Google Scholar
7. Sikka, V. K., Viswanathan, S., and McKamey, C.G., Structural Intermetallic (TMS, Warrendale, PA), pp. 483–491.Google Scholar