Erosion behavior of Fe-Al intermetallic alloys
- Kookmin Univ., Seoul (Korea, Republic of). Dept. of Metallurgy and Materials Engineering
- Research Inst. of Industrial Science and Technology, Pohang (Korea, Republic of). Materials Div.
- Pohang Univ. of Science and Technology (Korea, Republic of). Center for Advanced Aerospace Materials
The Fe-rich Fe-Al intermetallics have generated some interest, especially during the last decade, due to their excellent resistance for oxidation and sulfidation, high specific strength, and low material cost. The aluminide is therefore considered as one of the promising candidates for high-temperature structural materials in a corrosive atmosphere. Research effort has been focused mainly on process, development, and enhancement of room-temperature ductility together with the characterization of physical properties such as mechanical properties, oxidation, corrosion, and abrasive wear behavior. However, there have been only a few works reported to date in regard to the erosion characteristics of the alloy, one of the most important material property of this ordered intermetallic alloy for the use in a fossil-fuel plant. In this study, the solid-particle erosion behavior of the Fe-Al intermetallic alloys containing the various aluminum contents ranging from 25 to 30 at.% has been investigated to clarify the effect of aluminum content and different ordered structures, viz. DO{sub 3} and B2, on the erosion behavior. An attempt has been made to correlate the erosion behavior of these intermetallics to their mechanical properties by carrying out tensile tests together with SEM observation of the eroded surfaces.
- OSTI ID:
- 460434
- Journal Information:
- Scripta Materialia, Vol. 36, Issue 7; Other Information: PBD: 1 Apr 1997
- Country of Publication:
- United States
- Language:
- English
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