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MÖssbauer Study on B2 Intermetallic Compound Fe-40Al and its Mn or Ti Containing Alloys

Published online by Cambridge University Press:  01 January 1992

Dingqiang Li ,
Peien Li ,
Defang Sun  and
Dongliang Lin (T. L. LIN)
Dingqiang Li
Affiliation:
Institute of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Peien Li
Affiliation:
Institute of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Defang Sun
Affiliation:
Institute of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Dongliang Lin (T. L. LIN)
Affiliation:
Institute of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
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Abstract

The Mössbauer measurements at room temperature have been carried out on the B2 intermetallic compound Fe-40Al and its Mn or Ti containing alloys. The results show that all the Mössbauer spectra of Fe-40Al and its Mn or Ti containing alloys are approximately one-peak singlets. The Fe atoms in these alloys show no significant magnetic moment. The spectra of Mn or Ti containing alloys have been fitted with two Lorentzian lines by the method of least squares. By studying the isomer shifts and other parameters of these fitted lines, it have been shown that Mn atoms occupy both Fe and A1 sublattices, Ti atoms occupy preferentially Fe sublattice, however, a few of Ti atoms occupy A1 sublattice only as Ti concentration is over certain amount (∼5-at%).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 281
Copyright
Copyright © Materials Research Society 1995

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References

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