Study of superplastic deformation in an FeAl based alloy with large grains
- Shanghai Jiao Tong Univ. (China). Dept. of Materials Science and Engineering
In this paper some results of studies on a superplastically deformed FeAl based alloy are reported. The tensile behavior of the FeAl based alloy Fe-36.5Al-2Ti (in atomic percent) under different strain rates at high temperatures was examined by optical microscopy. The results revealed that the FeAl based alloy with the grain size of 350 {micro}m exhibited a large elongation of more than 140% at 900 C and 1,000 C under a strain rate range of 1.39{times}10{sup {minus}4}/s{approximately}2.78{times}10{sup {minus}2}/s. The maximum elongation is 208% at 1,000 C under a strain rate of 1.39{times}10{sup {minus}2}/s. The reason for the large elongation is ascribed to the dynamic recovery and recrystallization in this alloy during deformation at high temperatures.
- OSTI ID:
- 103584
- Journal Information:
- Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 4 Vol. 33; ISSN 0956-716X; ISSN SCRMEX
- Country of Publication:
- United States
- Language:
- English
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