Fatigue crack growth of Fe{sub 3}Al,Cr alloys
- Rensselaer Polytechnic Inst., Troy, NY (United States). Materials Science and Engineering Dept.
Iron aluminides are currently being considered for use in applications where excellent corrosion resistance, moderate strength at temperatures up to 500 C, and low cost are desired. Binary iron aluminides do not possess high ductility at room temperature in air; however, when tested in vacuum or gaseous oxygen environments iron aluminides have demonstrated ductility of greater than 10%. This indicates that Fe{sub 3}Al is an inherently ductile material and the low ductility in air is due to an environment interaction. The purpose of this research was to examine the changes in mechanical properties of two Fe{sub 2}Al,Cr intermetallic alloys in various environments. In particular, tensile behavior and fatigue crack growth resistance were examined and the resulting data used to gain insight into the role of hydrogen in embrittlement of iron aluminides.
- OSTI ID:
- 271741
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 12 Vol. 34; ISSN 1359-6462; ISSN XZ503X
- Country of Publication:
- United States
- Language:
- English
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